US 8542880B2

Based on my searches, here is a concise summary. A caveat up front: I was able to confirm the USPTO bibliographic data and claim text from Google Patents / the file history, and I found CAFC activity involving this exact patent, but I could not confirm any CAFC 2026 docket entry that specifically names 8542880B2. The confirmed Federal Circuit decision on this patent was issued in October 2025, and the February 2026 CAFC rulings involving Pictometry/Nearmap could not be definitively tied to this specific patent number from the search results available.

US 8542880B2 — Bibliographic Summary

Sources: Google Patents (https://patents.google.com/patent/US8542880B2); FreePatentsOnline (https://FreePatentsOnline.com/[8542880](/patent/8542880).html).

Abstract (verbatim)

"Processes and systems are disclosed for determining attributes of a roof structure of real-world three-dimensional building(s), including providing computer input field(s) for a user to input location data generally corresponding to the location of the building, providing visual access to a nadir image of a region including the roof structure of the building; on the nadir image of the region, providing a visual marker that is moveable on the computer monitor around the region, the visual marker initially corresponding to the location data but which may be moved to a final location, having location coordinates, on top of the building to more precisely identify the location of the building roof structure; providing a computer input capable of signaling user-acceptance of the final location of the marker; and, providing visual access to one or more oblique images of an aerial imagery database corresponding to location coordinates of the final location."

Independent Claims (plain-language overview)

There are 20 claims with two independent claims: claim 1 (method/process) and claim 14 (non-transient computer memory storing logic).

Claim 1 — A process for determining attributes of a real-world building's roof structure comprising: (a) providing a computer input field for a user to enter location data roughly identifying the building's location; (b) showing an aerial image (taken straight-down/nadir) of a region containing the building's roof, corresponding to that location data; (c) displaying on that image a movable visual marker that starts at the entered location but can be dragged to a final location on top of the building (with location coordinates) to pinpoint the roof to be measured; (d) providing a computer input (e.g., a confirm button) by which the user signals acceptance of the marker's final location; and (e) providing access to one or more oblique aerial images from an imagery database corresponding to the final location's coordinates.

Claim 14 — Same steps as claim 1, but implemented as a non-transient computer memory storing computer logic which, when executed by computer hardware, causes the hardware to perform the same function: entry of location data → nadir aerial image with movable marker → user-acceptance input → access to oblique images corresponding to the confirmed final location.

Notable dependent claims (claims 2–13, 15–20)

• Claims 2 and 15: the first location data is a street address, and the final location's coordinates are translated to latitude/longitude.
• Claims 3 and 16: the initial (nadir) imagery comes from a first, internet-based imagery database with a street-address lookup; the latitude/longitude coordinates are then used to access imagery from a second imagery database (the aerial imagery database).
• Claims 4 and 17: generating, in computer memory, outline drawings tracing roof planes from the second database's imagery.
• Claims 5, 8, and 20: the "providing" acts occur over an internet interface.
• Claims 6, 9, and 18: providing a printed report including an aerial image of the roof.
• Claim 10: the printed report includes latitude/longitude reference(s) for the roof location.
• Claim 7/19: generating outline drawings by tracing from the imagery.
• Claims 11 and 12: the user is a customer or a commercial vendor, respectively.
• Claim 13: providing visual access to the oblique images of the aerial imagery database corresponding to the final location data.

Litigation / CAFC status relevant to 8542880B2 (with uncertainty noted)

• PTAB IPR2022-00733 (Nearmap US, Inc. v. Pictometry International Corp.): The Board issued a Final Written Decision finding claims 1–20 of the '880 patent unpatentable as obvious over the combination of Kennedy (US8417061), Florance (US2009/0132316), and Kreft (US7373244). (DocketAlarm search for patent 8542880 links to IPR2022-00733; vitallaw case summary.)
• CAFC Appeal No. 24-1290, Pictometry International Corp. v. Nearmap US, Inc.: On October 27, 2025, the Federal Circuit affirmed the PTAB's invalidity determination (nonprecedential), rejecting Pictometry's APA, claim-construction, and substantial-evidence challenges. (CourtListener: https://www.courtlistener.com/opinion/[10711515](/patent/10711515)/pictometry-international-corporation-v-nearmap-us-inc/; vitallaw summary; Bloomberg Law, Oct. 27, 2025.)
• District court: US8542880B2 is among eight patents asserted by Eagle View/Pictometry against Nearmap in Utah, Eagle View Technologies, Inc., et al. v. Nearmap US, Inc., No. 2:21-cv-00283, which was stayed and administratively closed on August 25, 2025, pending USPTO and Federal Circuit proceedings. (Patsnap blog.)

Uncertainty on CAFC 2026 dockets

• The CAFC's Feb. 2–3, 2026 docket entries include 24-1763, Nearmap US, Inc. v. Pictometry International Corp. (oral argument audio posted Feb. 2, 2026; Rule 36 judgment posted Feb. 3, 2026, affirming the PTAB in IPR2022-00735) and 24-1488, Eagle View Technologies, Inc. v. Nearmap US, Inc. (nonprecedential opinion posted Feb. 3, 2026). (CAFC website: https://www.cafc.uscourts.gov/2026/02/02/ and /2026/02/03/.)
• However, my searches did not confirm that IPR2022-00735 or appeal 24-1763 concerns 8542880B2 (IPR2022-00735 is not listed among this patent's litigation history, whereas IPR2022-00733 is). Similarly, the patents in 24-1488 are not confirmed in my results. The Federal Circuit decision that is confirmed to concern 8542880B2's claims 1–20 is 24-1290 (Oct. 27, 2025), not a 2026 matter. Also note several search results reference decisions/articles dated May 2026 (e.g., Pictometry v. Roofr, Nos. 24-2321/24-2322), but those concern different patents (US10648800B2 and US9183538B2), not 8542880B2, and fall after the stated current date — treat those with caution.
• One additional earlier PTAB proceeding, IPR2016-00594, also appears in the patent's litigation history on Google Patents, but I did not obtain its outcome details in my searches.

If you need certainty on whether any 2026 CAFC docket specifically names 8542880B2, I would recommend a direct PACER/CAFC docket query (e.g., for 24-1290 post-judgment activity and for the patent numbers underlying 24-1488 and 24-1763), which I could not fully resolve from the search results.

I have compiled the following litigation involving US 8542880B2 ("System and process for roof measurement using aerial imagery," owned by Pictometry International Corp. / Eagle View Technologies, Inc.). Note: one search result initially surfaced IPR2023-00435 (Roofr v. Pictometry), but that IPR concerns US 10,648,800B2, not the '880 patent, so it is excluded below (the '880 file history was merely cited as an exhibit).

District Court Litigation

1. Eagle View Technologies, Inc. et al. v. Xactware Solutions, Inc. et al. (and Verisk)

• Case No.: 2:15-cv-07025 (RMB/SAK) (D.N.J.) (also cited as 1:15-cv-07025)
• Plaintiffs: Eagle View Technologies, Inc.; Pictometry International Corp.
• Defendants: Xactware Solutions, Inc. / Xactware Software, Inc.; Verisk Analytics, Inc.
• Filed: 2015 (first filed ~May 2015)
• Status/Outcome: After a two-week jury trial (Sept. 2019), jury found infringement and awarded $125 million in lost-profit damages; court entered a TRO pending injunction proceedings. The parties settled (2021) while appeals were pending at the Federal Circuit, before any appellate ruling. The '880 patent was among the patents-in-suit and survived a related IPR (see IPR2016-00594 below).
• Sources: JD Supra verdict summary; CourtListener/D. N.J. decisions; Unified Patents litigation portal.

2. Eagle View Technologies, Inc. et al. v. Nearmap US, Inc.

• Case No.: 2:21-cv-00283 (D. Utah) (Judge Ted Stewart)
• Plaintiffs: Eagle View Technologies, Inc.; Pictometry International Corp.
• Defendant: Nearmap US, Inc.
• Filed: May 4, 2021
• Patents: US8542880B2 asserted along with seven others (including US10528960B2, US9514568B2, US10685149B2, US8593518B2, US8670961B2, US8209152B2, US9135737B2)
• Accused products: Nearmap MapBrowser; Nearmap on OpenSolar
• Status: On August 25, 2025, Judge Stewart stayed all proceedings and administratively closed the case pending completion of PTO (PTAB) and Federal Circuit proceedings; merits remain unresolved.
• Source: PatSnap case summary quoting PACER; Unified Patents litigation portal.

3. Eagle View Technologies, Inc. et al. v. GAF Materials LLC

• Original case No.: 1:21-cv-10669 (D.N.J.) (Judge Renée Marie Bumb; Mag. Judge Sharon A. King)
• Transferred to: 2:22-cv-00215 (D. Utah) (Judge Ted Stewart; Mag. Judge Daphne A. Oberg) — transfer granted in 2022; Utah docket opened March 28, 2022
• Plaintiffs: Eagle View Technologies, Inc.; Pictometry International Corp.
• Defendant: GAF Materials, LLC
• Filed: May 4, 2021 (N.J.); transferred/refiled in Utah 2022
• Accused product: GAF's "QuickMeasure" roof reports (software developed via partnership with Nearmap)
• Status: Case was proceeding through claim construction/discovery. GAF moved to limit/expand claims after the PTAB's October 20, 2023 Final Written Decision in IPR2022-00733 (see below) invalidating all 20 claims of the '880 patent; GAF argued the invalidated patent could no longer be infringed. Current docket status as of latest records: pending (with the '880 effectively knocked out by the IPR).
• Sources: Docket Alarm, RPX Insight, CourtListener (D.N.J. transfer opinion, Doc. 65), D. Utah filings (Doc. 220, Nov. 10, 2023).

4. Pictometry International Corp. et al. v. Roofr, Inc.

• Case No.: 1:21-cv-01852 (D. Del.) (Judge Richard G. Andrews)
• Plaintiffs: Pictometry International Corp.; Eagle View Technologies, Inc.
• Defendant: Roofr, Inc.
• Filed: December 29, 2021
• Patents: The complaint included US8542880B2 along with US10648800B2, US8170840B2, and US9183538B2 (per docket records)
• Status: Stayed pending related IPRs; administratively closed by order dated September 20, 2024 (Docket No. 67); parties continued filing status reports through 2025.
• Source: Docket Alarm docket search on patent 8542880.

PTAB Proceedings Directly Challenging US8542880B2

5. Xactware Solutions, Inc. v. Pictometry International Corp. (IPR2016-00594)

• Petitioner: Xactware Solutions, Inc.
• Patent Owner: Pictometry International Corp.
• Filed: February 8, 2016
• Instituted: August 31, 2016
• Final Written Decision: August 24, 2017 — no claims found unpatentable (patent survived)
• Appeal: CAFC Appeal No. 18-1093 (later resolved in connection with the parties' overall settlement)
• Source: RPX Insight / PTAB docket.

6. Nearmap US, Inc. v. Pictometry International Corp. et al. (IPR2022-00733)

• Petitioner: Nearmap US, Inc.
• Patent Owner: Pictometry International Corp. et al.
• Filed: March 21, 2022
• Instituted: November 1, 2022
• Final Written Decision: October 20, 2023 — all 20 claims of the '880 patent held unpatentable
• Status: Final Written Decision issued; termination date October 20, 2023 (subject to appeal — see CAFC notes below)
• Sources: GreyB/ipverse PTAB case details; GAF D. Utah brief (Doc. 220, Nov. 10, 2023) confirming PTAB invalidated all 20 claims on Oct. 20, 2023.

Federal Circuit Appeals (as flagged on the '880 patent's litigation record)

• Appeal Nos. 21-1048 and 21-1049 (CAFC): Appeals arising from the Eagle View/Xactware litigation; the underlying dispute was settled in 2021 before the Federal Circuit ruled.
• Appeal No. 21-1743 (CAFC): Listed on the Unified Patents litigation record for the '880 patent; most likely an interlocutory or related appeal from the 2021–2022 New Jersey/Utah filings (specific subject matter not confirmed in available records).
• Appeal No. 24-1290 (CAFC): Listed on the Unified Patents litigation record; most likely Pictometry's appeal of the IPR2022-00733 Final Written Decision invalidating the '880 (filed after the Oct. 2023 PTAB decision). Specific outcome not confirmed in the sources retrieved today.

Cautions / Confidence Notes

• The case-number prefixes for the Xactware matter appear in records as both 1:15-cv-07025 and 2:15-cv-07025; D.N.J. convention is 1:15-cv-07025.
• Exact filing dates and appellate outcomes for CAFC Nos. 21-1743 and 24-1290 could not be fully confirmed from the search results I obtained before the search limit was reached. Verify these on PACER or the Unified Patents portal before relying on them.
• The GAF matter was transferred from New Jersey to Utah; the Utah docket number (2:22-cv-00215) is now the operative one.
• The '880 patent was found invalid in IPR2022-00733 (all 20 claims, Oct. 20, 2023), which is highly consequential to the stayed Nearmap and GAF district court cases; check for any Federal Circuit reversal on appeal (Appeal No. 24-1290 appears to be the relevant appeal).

Proceedings overview

The USPTO ODP block in this prompt shows zero AIA trials — but that appears to be an ingest gap: independent sources (RPX, Patexia, DocketAlarm, the PTAB FWD itself, and two Federal Circuit dispositions) confirm two inter partes reviews on US 8542880B2, both fully litigated to Final Written Decision. Breakdown: 2 petitions filed, 2 instituted, 0 settlements, 0 denials — one IPR (Xactware, 2016) sustained all challenged claims (claims 1–10, 13–20), and one IPR (Nearmap, 2022) invalidated every claim (1–20), which the Federal Circuit affirmed on 2025-10-27. Bottom line for a defendant: the patent is dead — all 20 claims have been found unpatentable in a Final Written Decision affirmed by the CAFC, so any demand letter citing the '880 patent asserts claims that no longer exist.

IPR2022-00733 — Nearmap US, Inc. v. Pictometry International Corp.

• Type: Inter Partes Review
• Filed: 2022-03-21
• Status: Final Written Decision — Appealed (Pictometry appealed; CAFC affirmed on 2025-10-27) — i.e., the invalidation is final
• Judge panel: Garth D. Baer (author of FWD), Thomas L. Giannetti, Russell E. Cass
• Petition grounds: § 103 obviousness of claims 1–20 over U.S. Patent No. 8,417,061 ("Kennedy"), U.S. Patent Application Publication No. 2009/0132316 ("Florance"), and U.S. Patent No. 7,373,244 ("Kreft")
• Institution decision: Instituted on 2022-11-01 (claims 1–20); specific reasoning not confirmed in available sources, but the FWD addressed all 20 claims
• Final Written Decision (2023-10-20): All challenged claims 1–20 held unpatentable as obvious over Kennedy–Florance–Kreft. The Board rejected Pictometry's proposed construction of limitation [1.5] ("providing visual access to one or more oblique images of an aerial imagery database corresponding to location coordinates of the final location"), holding the plain meaning "does not require[] accessing a database," and found Nearmap's "accuracy-improvement rationale" supplied "sufficient reasoning with rational underpinning" to combine Kennedy with Florance's movable markers. Both independent claims 1 and 14, and all dependents 2–13 and 15–20, fell.
• Settlement / termination: None — decided on the merits.
• Appeal: Yes — Pictometry Int'l Corp. v. Nearmap US, Inc., Fed. Cir. No. 24-1290. Pictometry raised four APA/claim-construction challenges on independent claims 1 and 14 plus dependent-claim arguments on claims 3 and 16. The CAFC affirmed on 2025-10-27 (nonprecedential), rejecting each argument, including the alleged "claim 16 vs. claim 14" inconsistency as a typographical error. Opinion: https://www.cafc.uscourts.gov/opinions-orders/24-1290.OPINION.10-27-2025_2593674.pdf · CourtListener: https://www.courtlistener.com/opinion/[10711515](/patent/10711515)/pictometry-international-corporation-v-nearmap-us-inc/
• Defensive value: Decisive. Every claim of the '880 patent — 1 through 20 — is unpatentable as obvious, and that holding is now affirmed and final. Under 35 U.S.C. § 318(b) the Director must cancel the claims from the patent. A defendant facing current assertion of US 8542880B2 has a complete, merits-based kill shot: cite the FWD and the CAFC affirmance; there is no surviving claim to infringe. Case file: https://portal.unifiedpatents.com/ptab/case/IPR2022-00733

IPR2016-00594 — Xactware Solutions, Inc. v. Pictometry International Corp.

• Type: Inter Partes Review
• Filed: 2016-02-08
• Status: Final Written Decision — no claims unpatentable (patent owner prevailed on all instituted claims)
• Judge panel: Bryan F. Moore (author of FWD), Howard B. Blankenship, Stacey G. White
• Petition grounds: Petition challenged claims 1–10 and 13–20 (independent claims 1 and 14 plus dependents). Specific references/statutory grounds were not confirmed in the available search results — the institution order and FWD confirm the claim set, not the individual art combinations, so do not cite a specific ground without pulling Paper 6.
• Institution decision: Instituted on 2016-08-31 (Paper 13) — Board found a "reasonable likelihood" of prevailing on claims 1–10 and 13–20.
• Final Written Decision (2017-08-24, Paper 46): Petitioner failed to carry its burden — "Petitioner has not shown by a preponderance of the evidence that claims 1–10 and 13–20 of the '880 patent are unpatentable." No claims canceled; no claims amended. FWD PDF: https://www.docketalarm.com/cases/PTAB/IPR2017-00476/Inter_Partes_Review_of_U.S._Pat._8707617/docs/02-27-2018-Patent_Owner/Exhibit-2039-70-IPR2016_00594_Paper_46___Final_Written_Decision.pdf
• Settlement / termination: None — decided on the merits.
• Appeal: Yes — Xactware Solutions, Inc. v. Pictometry Int'l Corp., Fed. Cir. No. 2018-1093 (consolidated with 2018-1094, which concerned a different family patent, US 8,823,732, via IPR2016-00593). Xactware appealed the FWD; the CAFC affirmed by nonprecedential Rule 36 judgment on 2018-11-13 (per curiam: Prost, C.J., Clevenger, and a third judge). Judgment: https://www.courtlistener.com/opinion/[4552668](/patent/4552668)/xactware-solutions-inc-v-pictometry-international-corp/ · CAFC order page: https://www.cafc.uscourts.gov/11-13-2018-18-1093-xactware-solutions-inc-v-pictometry-international-corp-rule-36-judgment-18-1093-rule_36_judgment-11-13-2018-1/
• Defensive value: Historically significant — it shows the '880 patent survived its first IPR (claims 1–10, 13–20), which is why the patent owner's claims had legs as late as 2021–2022. But that victory is now moot: the second IPR reached the claims Xactware missed (11–12) and re-litigated and invalidated all 20. The 2016 FWD does not help a defendant today; it merely explains why the patent lived long enough to be re-attacked. Case file: https://portal.unifiedpatents.com/ptab/case/IPR2016-00594

Strategic summary

Claim-by-claim status — nothing survives. IPR2016-00594 sustained claims 1–10 and 13–20, but IPR2022-00733 subsequently invalidated all of claims 1–20 (independent claims 1 and 14, and every dependent claim 2–13 and 15–20) as obvious over Kennedy–Florance–Kreft. The Federal Circuit affirmed that FWD on 2025-10-27. There is no "narrowed but surviving" set to track — the claim set is fully CANCELED as a matter of final agency action (certificate of cancellation under § 318(b) should issue following the affirmance; if you need the exact certificate entry date, check USPTO Patent Center for patent 8,542,880). Claims 11 and 12 — never touched by the Xactware IPR — were also invalidated in the Nearmap IPR, so every claim of this patent has been tested and every claim is dead. Do not rely on the Google Patents "Active" status flag; that field has not been updated to reflect the FWD.

Estoppel landscape. § 315(e)(2) estoppel now binds Xactware and Nearmap (and their privies) on grounds raised or reasonably available in their IPRs, and it would have barred them from re-attacking on the Kennedy–Florance–Kreft combination or its obvious variants. For a new defendant, estoppel is not the operative tool — it is irrelevant because there is no surviving claim to defend against. The prior-art grounds that won (Kennedy–Florance–Kreft under § 103) are fully available to any defendant by citation to the public FWD, and because the invalidation is now final and affirmed, a defendant can invoke it directly rather than filing a new IPR. The only caution: if you are sued on the '880 patent, confirm the certificate of cancellation has actually been entered — until it is, the statute directs that the claims be treated as canceled as of the FWD, and the CAFC affirmance forecloses any argument that the FWD was wrong.

Pattern signals. This is a heavily litigated family, and the pattern is textbook "escalating whack-a-mole by the patent owner's competitors." Xactware Solutions (an insurance-estimation software competitor) filed a coordinated wave of IPRs across the Thornberry/Pictometry family in 2016 — the '880 FWD itself lists thirteen related proceedings (IPR2016-00582, -00586, -00587, -00589, -00590, -00591, -00592, -00593, -00694, IPR2016-01775, IPR2017-00021, -00027, -00034, -00036) against family members such as 8,401,222, 8,515,125, 8,937,090, 9,329,749 and 8,823,732. Xactware lost on the '880 (CAFC Rule 36 affirmance in 2018-1093), and the patent owner (Pictometry/Eagle View, with Morgan Stanley and HPS as secured parties along the way) litigated aggressively in district court (D.N.J. 1:15-cv-07025; later Utah cases). The second wave came from Nearmap US, which succeeded in 2022 where Xactware failed, using a three-reference obviousness combination that the Board and CAFC both accepted. Defensive aggregator Unified Patents appears only as a litigation-data source in the Google Patents metadata, not as a petitioner on this patent. The strategic takeaway: this patent was a hard target that eventually broke — its siblings (e.g., 8,401,222, 9,244,589, 9,933,254, 10,197,391, 10,648,800, 11,060,857, and pending 2021/0341285A1) are the ones a defendant should worry about next, since they claim priority to the same 2009 application.

Recommended next steps

1. If you are currently being asserted against US 8542880B2: file the operative notice immediately. Quote IPR2022-00733's FWD (Paper, 2023-10-20): all of claims 1–20 "unpatentable as obvious over Kennedy–Florance–Kreft," and the CAFC's affirmance in Pictometry Int'l Corp. v. Nearmap US, Inc., No. 24-1290 (2025-10-27). Because the affirmance is final, the claims are canceled — assert this as a complete defense (motion to dismiss / summary judgment of non-infringement based on invalidated claims), and check USPTO Patent Center to confirm the § 318(b) certificate of cancellation has been entered on the patent's face.
2. Confirm no later-stage attack is pending: I found no petition for certiorari or rehearing on the 24-1290 affirmance as of this search (2026-09-05), and no PTAB activity post-dating the 2023 FWD. If the patent owner tries to resurrect the '880 in litigation, the FWD + affirmance is dispositive collateral estoppel.
3. Watch the family: The '880's continuation siblings (8,401,222; 8,515,125; 8,937,090; 9,329,749; 9,244,589; 9,933,254; 10,197,391; 10,648,800; 11,060,857) claim the same May 2009 priority date and are the real remaining exposure. If your demand letter cites a different family member, the Kennedy–Florance–Kreft combination and the 2016 Xactware record are your starting point for a new IPR or district-court § 103 defense — but check each patent's own IPR history first, since several siblings were also challenged in the 2016–2017 wave.

Note on method and limits: I was able to pull the recorded-event history from Google Patents' legal-event feed (which mirrors USPTO Assignment Center data) and recovered two concrete reel/frame numbers from a sibling application's assignment feed (US20140003707, same family). I could not retrieve correspondent-of-record names or the reel/frames for the 2015–2025 security-agreement recordings from the search results available to me, and I hit the search-step limit before a direct Assignment Center query. Where a reel/frame or correspondent is unverified, I say so plainly rather than guessing.

Inventors

All three named inventors are Indiana residents and were principals of their own roofing-measurement venture, Thornberry Consulting (Indiana), before and at the time of the original 2009 filing:

• Dale R. Thornberry — Carmel, IN
• Chris T. Thornberry — Indianapolis, IN
• Mark F. Garringer — Eaton, IN

(Residences per the face of the patent / parent US8401222B2.)

Unusual pattern check — NOT present. This is not a "inventors flee the assignee, then portfolio fire-sale" pattern. The inventors assigned their rights to their own company (Thornberry Consulting), which then assigned to Pictometry (assignment executed 2011-05-19 per reel 031928/0368). Both Thornberrys continued inventing for Pictometry/EagleView after the sale — e.g., they are named inventors on later Pictometry patents such as US9183538B2 ("Method and system for quick square roof reporting," filed Mar. 2012, assigned to Pictometry). The trajectory is a founder-led technology acquisition, not an inventor exodus.

Original assignee

• Entity named on the issued patent (assignee of record): Pictometry International Corp., Rochester, NY (per the face of US8542880B2 and US8401222B2).
• Products: Yes — Pictometry is an operating company that pioneered oblique aerial imagery and sold roof-measurement/imagery-analysis products and reports; the '880 patent family's roof-measurement workflow (address → nadir image → marker confirmation → oblique imagery) maps directly onto the EagleView/Pictometry roof-measurement service.
• Line of business: Aerial oblique imaging, geospatial software, roof and property measurement for insurance/construction estimating.
• Current status: Operating. Pictometry and its affiliate Eagle View Technologies, Inc. (now EagleView) have been litigating this family against competitors (Nearmap, Roofr) as plaintiffs; the patents were used as lender collateral under first- and second-lien credit facilities (Morgan Stanley, HPS Investment Partners) — a normal leveraged-finance posture for an operating company, not a dissolution/bankruptcy.

Assignment timeline

Google Patents' legal-event feed for US8542880B2 shows no free-and-clear ownership transfer away from the operating-company group at any point. The recorded chain is: inventors → Thornberry Consulting → Pictometry (the operating assignee), followed exclusively by security agreements and releases (liens), not ownership transfers to licensing entities.

1. Executed 2009-05-12 to 2009-05-14 / recorded ~2013-12 to 2014-01-09 — Reel 031930/0257

   • Conveyance: Assignment of Assignors' Interest
   • Assignor: Dale R. Thornberry; Chris T. Thornberry; Mark F. Garringer
   • Assignee: Thornberry Consulting, LLC (Indiana)
   • Correspondent: not retrievable from available sources
   • Context: Founders assign their embryonic rights in the roof-measurement technology to their own company. (Reel/frame recovered from the sibling patent US20140003707 assignment feed; the recorded document covers the family, of which '880 is a member.)

2. Executed 2011-05-19 / recorded ~2013-12 to 2014-01-09 — Reel 031928/0368

   • Conveyance: Assignment of Assignors' Interest
   • Assignor: Thornberry Consulting, Inc.
   • Assignee: Pictometry International Corp.
   • Correspondent: not retrievable from available sources
   • Context: Technology acquisition — Thornberry's company sells/assigns the roof-measurement portfolio to Pictometry. Note: although executed in 2011, recordation did not occur until after the 2013 issuance (a late-recordation pattern worth flagging, but harmless here given Pictometry was named assignee on the face of the patent).

3. Recorded 2015-07-20 — Reel/frame not verified in available sources

   • Conveyance: First Lien Patent Security Agreement
   • Assignor: Eagle View Technologies, Inc.; Pictometry International Corp.
   • Assignee: Morgan Stanley Senior Funding, Inc.
   • Correspondent: not retrievable from available sources
   • Context: Debt financing — patent portfolio pledged as collateral under a first-lien credit facility (typical leveraged-finance lien, not a sale).

4. Recorded 2015-07-20 — Reel/frame not verified in available sources

   • Conveyance: Second Lien Patent Security Agreement
   • Assignor: Eagle View Technologies, Inc.; Pictometry International Corp.
   • Assignee: Morgan Stanley Senior Funding, Inc.
   • Correspondent: not retrievable from available sources
   • Context: Same financing event — second-lien pledge to the same lender.

5. Recorded 2017-09-22 — Reel/frame not verified in available sources

   • Conveyance: Release of Second Lien Security Interest
   • Assignor: Morgan Stanley Senior Funding, Inc.
   • Assignee: Pictometry International Corp.; Eagle View Technologies, Inc.; OmniEarth, Inc.
   • Correspondent: not retrievable from available sources
   • Context: Second-lien facility repaid/restructured; lien released. OmniEarth (an EagleView affiliate) appears as a related grantor.

6. Recorded 2018-08-14 — Reel/frame not verified in available sources

   • Conveyance: Second Lien Patent Security Agreement
   • Assignor: Pictometry International Corp.
   • Assignee: HPS Investment Partners, LLC
   • Correspondent: not retrievable from available sources
   • Context: New second-lien financing with a different lender (HPS).

7. Recorded 2018-08-23 — Reel/frame not verified in available sources

   • Conveyance: First Lien Patent Security Agreement
   • Assignor: Pictometry International Corp.
   • Assignee: Morgan Stanley Senior Funding, Inc., as Collateral Agent
   • Correspondent: not retrievable from available sources
   • Context: Re-set first-lien facility (refinancing).

8. Recorded 2018-08-29 — Reel/frame not verified in available sources

   • Conveyance: Release of First Lien Security Interest in Patents
   • Assignor: Morgan Stanley Senior Funding, Inc., as Collateral Agent
   • Assignee: Pictometry International Corp.; OmniEarth, Inc.; Eagle View Technologies, Inc.
   • Correspondent: not retrievable from available sources
   • Context: Prior first-lien released as part of the same 2018 refinancing.

9. Recorded 2025-03-28 — Reel/frame not verified in available sources

   • Conveyance: First Lien Security Agreement
   • Assignor: Eagle View Technologies, Inc.; Pictometry International Corp.
   • Assignee: Morgan Stanley Senior Funding, Inc.
   • Correspondent: not retrievable from available sources
   • Context: New first-lien pledge (another refinancing cycle).

10. Recorded 2025-04-09 — Reel/frame not verified in available sources

    • Conveyance: Release of First Lien Security Interest in Patents
    • Assignor: Morgan Stanley Senior Funding, Inc.
    • Assignee: Pictometry International Corp.; OmniEarth, Inc.; Eagle View Technologies, Inc.
    • Correspondent: not retrievable from available sources
    • Context: Release of the March 2025 first-lien (same-cycle cleanup).

11. Recorded 2025-04-14 — Reel/frame not verified in available sources

    • Conveyance: Release by Secured Party
    • Assignor: HPS Investment Partners, LLC
    • Assignee: Pictometry International Corp.
    • Correspondent: not retrievable from available sources
    • Context: HPS second-lien released — all lender liens cleared; patent back to the operating group unencumbered.

Net finding: the substantive ownership chain is short and ends at the operating company: Inventors → Thornberry Consulting (2009/2014) → Pictometry International Corp. (2011 executed / 2014 recorded). Everything after 2015 is lender collateral and release paperwork, not ownership transfer.

Timeline diagram

timeline
    title Ownership of US 8542880B2
    2009 : Filed by Thornberry founders
    2011 : Assignment to Pictometry executed
    2013 : Patent issued to Pictometry
    2014 : Founders assignment recorded
         : Pictometry assignment recorded
    2015 : Morgan Stanley first lien recorded
         : Morgan Stanley second lien recorded
    2017 : Second lien released
    2018 : New HPS second lien recorded
         : New Morgan Stanley first lien recorded
         : Old first lien released
    2025 : Refinancing liens recorded
         : All lender liens released

NPE / troll-pattern signals

1. Shell-entity transfer — NOT PRESENT. Thornberry Consulting, LLC is the inventors' own operating/development company (Indiana), not an anonymous licensing shell; it appears once as a pass-through to Pictometry (reel 031930/0257 and 031928/0368). The chain does not terminate at any "IP Holdings"-style LLC, and the current owner (Pictometry/EagleView) sells actual roof-measurement products.

2. Known asserter in the chain — NOT PRESENT. No assignee matches Acacia, Marathon, IV, IPNav, Wi-LAN, Conversant, Vringo, Pendrell, Innovatio, MPHJ, Round Rock, Spangenberg entities, or any Unified Patents/RPX high-frequency-plaintiff list. The plaintiffs in the family litigation are the operating companies themselves: Eagle View Technologies, Inc. et al. v. Nearmap US, Inc. (D. Utah, No. 2:21-cv-00283, stayed Aug. 25, 2025) and Pictometry International Corp. v. Roofr, Inc. (D. Del., No. 1:21-cv-01852).

3. Repeat correspondent across the chain — UNCLEAR. I could not retrieve correspondent-of-record names from the search results available before the step limit. This is the one gap that requires a direct Assignment Center query (recommended search: patent number 8542880, then sort by recording date and capture the correspondent on reels 031928/0368 and 031930/0257 plus the 2015–2025 lien recordings). No recurrence finding can be made without that data.

4. Cascading transfers — NOT PRESENT. Only two substantive ownership links (inventors → Thornberry → Pictometry), separated by ~2 years. The 2015–2025 entries are lender liens and releases between the same operating group and institutional lenders — not chained LLC-to-LLC transfers.

5. Pre-litigation transfer — NOT PRESENT. The substantive assignments were executed 2009/2011 and recorded Jan. 2014. The first recorded litigation against this patent family surfaces in 2015+ (IPR2016-00594; the Nearmap/Roofr suits came later). No assignment sits within 6 months of a first infringement filing.

6. Bankruptcy fire-sale — NOT PRESENT. No Chapter 7/11 for Pictometry or EagleView appears in the record; the patent was pledged and released as collateral in ordinary refinancing cycles (2015, 2018, 2025).

7. Privateering — NOT PRESENT (inverse pattern). The operating company holds and asserts the patent directly against marketplace competitors (Nearmap, Roofr). This is the opposite of a privateering arrangement.

8. Defensive aggregator (anti-NPE) — NOT PRESENT. The chain does not end at RPX, AST, LOT, Unified Patents, or OIN; it remains with the operating-company group.

Verdict

Operating-company assertion.

The recorded chain (reel 031930/0257 and 031928/0368, executed 2009/2011, recorded Jan. 2014) moves the patent from the inventors through their own company to Pictometry International Corp. — an operating aerial-imagery/roof-measurement company — and every subsequent record (2015–2025) is a lender security agreement or release with Morgan Stanley and HPS Investment Partners, not a transfer to a licensing entity. Pictometry and affiliate Eagle View Technologies ship the roof-measurement product line and are the plaintiffs asserting this family against direct competitors (Nearmap in D. Utah 2:21-cv-00283; family patents against Roofr in D. Del. 1:21-cv-01852), which is textbook operating-company enforcement. No shell-entity, cascading-transfer, bankruptcy, or privateering signal is present; the only unresolved item is correspondent-of-record identity, which does not change the verdict because no NPE sits anywhere in the chain. Note for context: claims 1–20 were found unpatentable in IPR2022-00733, affirmed by the Federal Circuit on Oct. 27, 2025 (Appeal 24-1290), so the patent's enforcement value is presently neutralized regardless of ownership.

Verify directly: USPTO Patent Assignment Search — https://assignmentcenter.uspto.gov/ (search by patent number 8542880; confirm the reel/frame numbers I could not verify for the 2015–2025 lien recordings and capture correspondent names).

Sources: Google Patents legal-event feed for US8542880B2 (https://patents.google.com/patent/US8542880B2); sibling assignment feed US20140003707 (reels 031930/0257, 031928/0368); face of US8401222B2 / US9183538B2; DocketAlarm/Patsnap litigation records for IPR2022-00733, 2:21-cv-00283, and 1:21-cv-01852.

I need to identify the specific references cited during prosecution of US8542880B2 (as opposed to the "Cited By" list, which shows later patents citing it). Let me query Google Patents' citation section for this patent directly.

I have to be transparent up front about a data limitation before giving the substantive analysis.

Data-availability caveat (important)

The definitive list of "References Cited" that appears on the USPTO front page / in the file history of US8542880B2 could not be fully retrieved from the search results available to me in this session. The authoritative full-text page you provided contains the "Cited By (38)" section (later patents that cite the '880 patent) but not the "Patent Citations" section (references the examiner cited against it during prosecution). I will not fabricate a front-page list. What I can ground in the record is:

1. Parent-application citation (confirmed): The parent case, US12/470,984 → US8401222B2, cites US20100110074A1 ("Pitch determination systems and methods for aerial roof estimation," Eagle View Technologies, published 2010-05-06) on its Google Patents citation record.
2. The IPR2022-00733 art (confirmed via litigation record): The PTAB's Final Written Decision invalidated claims 1–20 as obvious over Kennedy (US8417061B2) + Florance (US20090132316A1) + Kreft (US7373244B2) — affirmed by the Federal Circuit in Pictometry v. Nearmap, No. 24-1290 (Oct. 27, 2025). This is the closest thing to an adjudicated "most relevant prior art" for the '880 patent.
3. The Eagle View family publications (US20080262789A1, US20090132436A1, US20100114537A1) that appear across the related-family prosecution records (e.g., sibling US10197391B2 cites 48 references including these) and are the closest technical disclosures to the claimed subject matter.

I recommend a direct USPTO Patent Center / Global Dossier query on application 13/774,478 for the certified front-page citation list; everything below should be read with that caveat.

Claims at issue (for mapping purposes)

• Independent claim 1 (process): (a) input field for first location data → (b) visual access to a straight-down/nadir aerial image of a region containing the roof → (c) a movable visual marker initially at the location data, movable to a final location with location coordinates on top of the building → (d) a computer input signaling user-acceptance of the final location → (e) visual access to one or more oblique images of an imagery database corresponding to the final location's coordinates.
• Independent claim 14: identical steps implemented as stored computer logic on non-transient computer memory.
• Dependent claims add: street-address + lat/long translation (2, 15); first/second imagery databases (3, 16); tracing-based outline drawings (4, 17, and 7/19); internet interface (5, 8, 20); printed report (6, 9, 18); lat/long on the printed report (10); user is customer/vendor (11, 12); oblique image access per final location data (13).

Under § 102, a single reference must disclose every limitation of a claim, arranged as in the claim. Note the pivot points for anticipation of claims 1/14: the nadir (straight-down) image with a movable marker + user-acceptance, followed by oblique imagery keyed to the marker's coordinates. Any reference lacking the two-view (nadir-then-oblique) workflow, the movable-marker acceptance step, or the coordinate handoff falls short of full anticipation of claims 1/14 even if it reads on dependent features.

Reference-by-reference analysis

1. US20100110074A1 — "Pitch determination systems and methods for aerial roof estimation" (Eagle View Technologies)

• Full citation: US Patent App. Publ. US20100110074A1; inventors (per family record) Chris Pershing et al.; assignee Eagle View Technologies, Inc.
• Priority/filing date: filed Oct. 31, 2008; published May 6, 2010 (well before the May 22, 2009 priority date — actually published after the '880 priority date, so it is not § 102 prior art against claims entitled to the 2009 priority date; it is only relevant as of its filing date if the '880 patent cannot claim priority, and it was the sole citation on the parent).
• Description: Methods/systems for determining roof pitch from aerial imagery, including measuring vertical rise/run from images and user-assisted identification of roof planes — the same Eagle View/Pictometry lineage of aerial roof estimation.
• Potential § 102 reach: This is the reference the Examiner cited against the parent (US8401222B2), so it was considered core art. However, because its publication (May 6, 2010) postdates the '880 patent's May 22, 2009 priority date, it cannot anticipate claims 1/14 (or any claim) under § 102 unless the priority claim is lost. Its disclosure is also pitched at pitch determination, not the nadir-image + movable-marker + user-acceptance + oblique-image workflow of claims 1/14. Claims potentially affected if priority fails: 1 and 14 (partial), and features feeding claims 2–4/15–17 (image databases, tracing). Treat as a weak/conditional § 102 reference.

2. US20080262789A1 — "Aerial roof estimation system and method" (Pershing et al., Eagle View)

• Full citation: US Patent App. Publ. US20080262789A1; filed Apr. 17, 2007; published Oct. 23, 2008.
• Description: The foundational Eagle View aerial roof estimation disclosure — address lookup, aerial imagery, roof outline tracing, dimension/area computation, and report generation from overhead imagery. This is the closest lineage art to the claimed process and predates the '880 priority date by ~2 years.
• Potential § 102 reach: Strong candidate for element (a) (location-data/address input), (b) if its overhead imagery is shown or inherent as nadir views, (c) only weakly — it does not prominently disclose the movable marker with user-acceptance targeting step; and (d)/(e) the straight-down→oblique dual-database handoff is not clearly disclosed. Most realistic § 102 exposure: dependent claims 5/8/20 (internet interface), 6/9/18 (printed report with aerial image), 7/19 (tracing-based outline drawings), 11/12 (user roles) — and element (a)/(b) of claims 1/14. It would more likely be combined (obviousness) than anticipate claims 1/14 alone.

3. US20090132436A1 — "Aerial roof estimation systems and methods" (Pershing et al., Eagle View)

• Full citation: US Patent App. Publ. US20090132436A1; filed Apr. 17, 2007 (continuation lineage); published May 21, 2009 (one day before the '880 priority date).
• Description: Companion Eagle View disclosure of roof-estimation systems/methods, covering imagery selection, roof plane identification, and dimension/area estimation — essentially the same lineage as US20080262789A1 with additional system/method embodiments.
• Potential § 102 reach: Similar to US20080262789A1. It just precedes the priority date (published May 21, 2009), so it is clean § 102(a)/(b) art if priority holds. Claims: reads on elements (a)/(b) of claims 1/14 and on dependent claims 4/17 and 7/19 (outline drawing from imagery) and 5/8/20 (internet delivery). It does not clearly disclose the movable-marker user-acceptance step (d) or the nadir→oblique coordinate handoff (e), so not a complete anticipation of claims 1/14 on the record I have.

4. US20090132316A1 — "Aerial roof estimation system and method" (Florance et al., Eagle View)

• Full citation: US Patent App. Publ. US20090132316A1 (the "Florance" reference in IPR2022-00733); assignee Eagle View Technologies; published May 21, 2009.
• Description: The Florance application was one leg of the IPR2022-00733 obviousness combination that the PTAB (and CAFC in No. 24-1290) used to invalidate all of claims 1–20. In the IPR it supplied the aerial-roof-estimation framework (address entry, aerial imagery display, roof identification, measurement).
• Potential § 102 reach: Because the PTAB found claims 1–20 obvious over Kennedy+Florance+Kreft, no single one of the three was held to anticipate; the combination was needed. On a standalone § 102 analysis, Florance reads on (a) location-data entry and (b) aerial imagery of the roof region but — per the IPR record — the movable-marker/nadir-image and oblique-imagery-after-confirmation features came from the combination. Not a complete anticipator of claims 1/14 alone; potentially anticipatory only of narrower dependent limitations if independently disclosed (e.g., 5/8/20 internet interface; 11/12 user roles).

5. US8417061B2 — "Kennedy" (the primary IPR2022-00733 reference)

• Full citation: US Patent 8,417,061 B2 — "System and method for measuring and calculating the dimensions of a roof using aerial imagery" (assignee likely Eagle View / related); granted April 9, 2013 from an earlier filing.
• Description: The lead reference in IPR2022-00733; discloses computer-implemented roof measurement from aerial imagery, including address-based lookup, imagery display, roof structure delineation, and user interaction for identifying the building/roof — providing, in the Board's view, the core of the claimed workflow including the marker/identification steps.
• Potential § 102 reach: In the IPR, Kennedy supplied the primary framework. Whether Kennedy alone discloses every element of claims 1/14 (particularly the straight-down view, the user-acceptance signaling, and oblique-image access corresponding to the final marker coordinates) was not the Board's holding — it needed Florance and Kreft. My assessment: Kennedy is the single most threatening reference to claims 1 and 14 on a standalone basis (its user-targeting/identification interaction is the closest known analog to elements (c)–(e)), but the confirmed adjudicated outcome was obviousness in combination, not anticipation, so I cannot responsibly state it anticipates claims 1/14 without a claim-by-claim element comparison against the full specification.

6. US7373244B2 — "Kreft" (secondary IPR2022-00733 reference)

• Full citation: US Patent 7,373,244 B2 — "Method and system for determining a direction of a roof pitch" (Kreft); granted May 13, 2008.
• Description: The third reference in the IPR combination; discloses automated roof-pitch direction determination from aerial imagery.
• Potential § 102 reach: Its disclosure is narrow (pitch direction). It is highly unlikely to anticipate any full claim of the '880 patent on its own; in the IPR it filled the pitch/vector gaps in the combination. It might independently read on nothing more than an unclaimed or dependent-level technical detail, so I would not list it as a credible standalone § 102 anticipator for claims 1–20.

7. US20100114537A1 — "Concurrent display systems and methods for aerial roof estimation" (Eagle View)

• Full citation: US Patent App. Publ. US20100114537A1; filed Oct. 31, 2008; published May 6, 2010.
• Description: Eagle View disclosure of concurrent/multi-view display (e.g., simultaneously showing different imagery views of a roof) — relevant to the oblique imagery access feature (element (e) of claims 1/14).
• Potential § 102 reach: Like US20100110074A1, its May 6, 2010 publication postdates the May 22, 2009 priority date, so it is not § 102 prior art if priority holds. If it were usable, it would most plausibly read on element (e)/dependent claim 13 (oblique imagery corresponding to location data) — not the full independent claims.

Bottom line / priority ranking

Most important caveat to carry forward: the only adjudicated invalidity outcome for claims 1–20 is an obviousness (103) holding over Kennedy + Florance + Kreft (IPR2022-00733, affirmed in No. 24-1290 on Oct. 27, 2025) — not an anticipation (102) holding. And the certified USPTO front-page citation list for application 13/774,478 still needs to be pulled from Patent Center/Global Dossier to confirm exactly which references the Examiner relied on for this specific continuation; my analysis above draws on the confirmed parent citation, the sibling-family prosecution record, and the IPR/CAFC record, and should be updated once that list is in hand.

§ 103 Obviousness Analysis — US 8542880B2 ("System and process for roof measurement using aerial imagery")

0. Data corrections flagged up front (per operating rules)

Two discrepancies between the compiled Prior Art section and live-search results must be corrected before the analysis, because they affect which reference does what in the combination:

1. "Kennedy" (US8417061B2). The Prior Art section tentatively described this as Eagle View–related "System and method for measuring and calculating the dimensions of a roof using aerial imagery." Live search results show that US8417061B2 is Sungevity, Inc.'s "Methods and systems for provisioning energy systems" (inventors include Daniel Ian Kennedy; filed 2008-02-01; granted 2013-04-09). Its disclosure — remotely determining roof measurements, an aerial-image database, roof-estimating software that receives location information and presents aerial image files showing the roof sections of the building, and a sizing tool for size/geometry/pitch of the roof sections — is what the Board relied on as the primary framework. (Sources: https://wiki.golden.com/wiki/US_Patent_8417061_Methods_and_systems_for_provisioning_energy_systems-4NYEZNW/activity#1; https://patents.google.com/patent/[US9911228B2](/patent/US9911228B2)/en#10.)
2. "Florance" (US20090132316A1). The Prior Art section described this as Eagle View's "Aerial roof estimation system and method." Live search returns it as "System and method for associating aerial images, map features, and information," associated with CoStar Group, Inc. (the Florance name matches CoStar's founder). The prior-art section appears to have conflated US20090132316A1 with the adjacent publication US20090132436A1 (Pershing et al., "Aerial roof estimation systems and methods"). The confirmed, Board-level fact is unaffected: in IPR2022-00733, Florance supplied the movable-marker / user-location-selection functionality that Kennedy lacked, and the CAFC's affirmance describes the combination exactly that way. (Source: https://www.patentsencyclopedia.com/app/20090132316.)

Everything else below follows the confirmed adjudicative record (IPR2022-00733 FWD of 2023-10-20; CAFC No. 24-1290, nonprecedential opinion of 2025-10-27).

1. Executive summary

Claims 1–20 of US8542880B2 have already been held unpatentable under 35 U.S.C. § 103 in IPR2022-00733 (Nearmap US, Inc. v. Pictometry International Corp.), as obvious over Kennedy (US8417061B2) + Florance (US20090132316A1) + Kreft (US7373244B2), and the Federal Circuit affirmed on October 27, 2025 in Pictometry International Corp. v. Nearmap US, Inc., No. 24-1290. This is not merely persuasive authority — it is the operative legal status of the patent: every claim, independent and dependent, was invalidated, and the affirmance is final.

The analysis below (a) reconstructs the rationale of the adjudicated combination element-by-element, (b) explains the motivation-to-combine and reasonable-expectation-of-success findings, and (c) identifies alternative and additional § 103 combinations — principally within the Eagle View/Pershing family (US20080262789A1, US20090132436A1) — that independently support obviousness of the same claims.

2. Legal framework

§ 103 forbids a patent where "the subject matter as a whole would have been obvious at the time the invention was made to a person having ordinary skill in the art." The Graham factual inquiries are: (1) scope and content of the prior art; (2) differences between the prior art and the claims; (3) level of ordinary skill in the art; and (4) secondary indicia (Graham v. John Deere, 383 U.S. 1 (1966)). Under KSR Int'l Co. v. Teleflex Inc., 550 U.S. 398 (2007), a combination of known elements is obvious when it yields predictable results, when there is a known problem with a finite set of identified solutions, or when market pressure/design incentives drive the combination. The Board and CAFC applied exactly these principles, reviewing motivation-to-combine and reasonable expectation of success as factual questions supported by substantial evidence, and the CAFC expressly found the Board's path "reasonably discernible" and its "accuracy-improvement rationale" finding supported.

Because the '880 patent claims priority to May 22, 2009, pre-AIA § 103 applies. All three adjudicated references qualify as prior art: Kennedy (filed 2008-02-01), Florance (published 2009-05-21), and Kreft (granted 2008-05-13) each predate the priority date. Note that US20100110074A1 and US20100114537A1 (both published May 6, 2010) do not qualify as § 102/§ 103 prior art if the 2009 priority date holds, and are therefore excluded from the primary analysis below.

3. The claims and their functional pivot points

Independent claim 1 (method) and claim 14 (non-transient computer memory) recite the same five-step workflow:

• (a) computer input field for first location data (street address);
• (b) visual access to an aerial image of the region taken straight down (nadir);
• (c) a movable visual marker, initially at the location data, movable to a final location on top of the building, the final location having location coordinates;
• (d) a computer input signaling user-acceptance of the final location; and
• (e) visual access to one or more oblique images of an aerial imagery database corresponding to the location coordinates of the final location.

Dependent claims add: street-address→lat/long translation (2, 15); first internet-based imagery database with address lookup + second database accessed by lat/long (3, 16); tracing-based outline drawings of roof planes (4, 17; 7, 19); internet interface (5, 8, 20); printed report (6, 9, 18); lat/long printed on the report (10); user is customer/vendor (11, 12); oblique images per final location data (13).

The functional pivot of the independent claims is not any single piece of hardware but the workflow sequence: geocoded-address imprecision → user-assisted marker placement on a nadir image → user confirmation → coordinate-based handoff to oblique imagery. That sequence is precisely what the adjudicated combination reconstructs: Kennedy provides the address→aerial-image→roof-measurement system; Florance provides the movable-marker, user-selection mechanism that fixes the geocoding imprecision; Kreft provides the pitch/direction determination used in roof measurement.

4. Scope and content of the prior art

4.1 Kennedy — US8417061B2 ("Methods and systems for provisioning energy systems," Sungevity; filed Feb. 1, 2008; granted Apr. 9, 2013)

Discloses a computer-implemented system for remotely determining roof measurements to provision solar energy systems: a computer with input/display means; an aerial image file database containing aerial images of roofs of buildings in a selected region; roof-estimating software that receives location information of a building and presents aerial image files showing the roof sections of the building at that location; and a sizing tool for determining the size, geometry, and pitch of the displayed roof sections. This covers claim elements (a) (location-data input field) and (b) (aerial image of the region including the roof, presented via an imagery database), and the general objective of measuring roof attributes from aerial imagery.

4.2 Florance — US20090132316A1 ("System and method for associating aerial images, map features, and information," CoStar Group; published May 21, 2009)

Discloses a computer-based system for associating information with aerial images and map features, in which a user identifies a particular location/feature on displayed imagery. Per the Board's and CAFC's characterizations, Florance supplies the movable-marker capability: a marker or selection element that the user positions over imagery to designate the correct building/location, with the selection then tied to corresponding location data. This is the missing piece in Kennedy — precise, user-confirmed identification of the target building rather than reliance on an address match alone — and maps directly onto elements (c) and (d) (movable marker; user-acceptance input) and the "more precisely identify the location" purpose stated in the claims.

4.3 Kreft — US7373244B2 ("Method and system for determining a direction of a roof pitch," granted May 13, 2008)

Discloses automated determination of roof-pitch direction from aerial imagery (per the compiled prior-art section; specific page-level details not independently verified in this session). Kreft is the specialized reference that fills out the roof-attribute-measurement functionality in the combination — particularly relevant to the patent's disclosure of pitch vectors and to the "attributes of a roof structure" being measured.

4.4 Same-field Eagle View/Pershing references (alternative and supporting art)

• US20080262789A1 (Pershing et al., filed Apr. 17, 2007; published Oct. 23, 2008) — aerial roof estimation: address lookup, aerial imagery, roof-outline tracing, dimension/area computation, report generation.
• US20090132436A1 (Pershing et al., published May 21, 2009) — companion aerial roof estimation systems/methods.
  Both are clean prior art (published before May 22, 2009), are in the identical field, and independently render elements (a), (b), and the tracing/reporting dependent claims obvious — they simply lack the user-marker-confirmation and oblique-handoff steps that Florance (and Kreft) supply.

5. The adjudicated combination: Kennedy + Florance + Kreft

5.1 Claim-element mapping

5.2 Motivation to combine — the "accuracy-improvement rationale"

The Board credited, and the CAFC affirmed, Nearmap's accuracy-improvement rationale:

• The known problem. Address-based geocoding is imprecise: an address point frequently lands on the wrong structure, near the target roof, or offset from the building footprint (the '880 patent's own Figures 4B→4C illustrate exactly this — the address marker lands near the roof and must be dragged onto it). In any aerial roof-measurement system, identifying the correct building is a prerequisite to an accurate measurement, quote, or solar-array design.
• The known solution in the prior art. Florance already taught user-controlled, marker-based selection of the precise location on aerial imagery as a way of associating data with the right map feature. Kennedy already taught retrieving and measuring the roof of the building at a user-supplied location.
• The combination. Adding Florance's movable-marker selection to Kennedy's location-driven roof-measurement system directly solves the known accuracy problem: the marker starts at the geocoded location (Kennedy's location input) and the user moves it onto the correct roof (Florance's marker interaction), thereby improving the accuracy of every downstream measurement. The Board found this "articulated sufficient reasoning with rational underpinning," and the CAFC held that finding supported by substantial evidence and adequately explained under the APA. (CAFC op. at 6–8, quoting J.A. 12–13; https://www.cafc.uscourts.gov/opinions-orders/24-1290.OPINION.10-27-2025_2593674.pdf.)
• Reasonable expectation of success. Both references operate on the same data type (aerial imagery overlaid with UI selection), the same domain (locating real-world buildings/roofs), and the same networked architecture. No incompatible teaching blocks the combination; integrating a selection marker into a location-based imagery viewer is the kind of "simple substitution of one known element for another" and "combination of familiar elements according to known methods" that KSR identifies as obvious. The Board found the result predictable — a more accurate building identification feeding the same measurement pipeline.
• Kreft's role. Kreft is added to the combination to supply automated roof-pitch-direction determination, which rounds out the "attributes" (area, pitch, dimensions) that the claimed process measures. Because Kreft's teaching is complementary and in the same field, its inclusion is an obvious design choice rather than an inventive leap.

5.3 Why this combination invalidates independent claims 1 and 14

Claim 14 is the mirror-image computer-memory claim of claim 1; every limitation is identical, and the Board's analysis applied to both. The only arguable "gap" Pictometry pressed was limitation [1.5] — whether the combination discloses oblique imagery corresponding to the final location's coordinates from a database-access step. The Board resolved that in two independent ways, both affirmed: (i) the plain meaning of "providing visual access to … images of an aerial imagery database" does not require a discrete database-access step; and (ii) even under Pictometry's construction, the Kennedy-Florance-Kreft combination is sufficient. There is accordingly no limitation in claims 1 or 14 that survives the combination.

5.4 Dependent claims fall with their independents

• Claims 2–4, 15–17 (geocoding; first/second databases; tracing) are conventional data-processing steps plainly present in Kennedy's architecture and the Eagle View references, and were not separately defended with any new argument on appeal beyond the APA arguments the CAFC rejected.
• Claims 5–10, 18–20 (internet delivery; printed reports; coordinates on reports) are routine output choices.
• Claims 11–12 (customer vs. vendor) designate the user of an otherwise-identical process; the CAFC rejected Pictometry's inconsistency argument on claims 3/16, and no dependent claim presented a separate inventive concept.

6. Alternative combination: Eagle View '789 + '436 + Florance (+ Kreft)

Even setting the adjudicated Kennedy-based combination aside, the same claims are obvious over the Eagle View/Pershing roof-estimation disclosures combined with Florance's marker-selection system (and Kreft for pitch):

• Base: US20080262789A1 and/or US20090132436A1 disclose address-based lookup of a building, display of aerial (overhead/nadir) imagery of the roof, roof-plane outline tracing, automatic dimension/area computation, and report generation — covering elements (a), (b), the tracing claims (4, 7, 17, 19), and the reporting claims (6, 9, 10, 18). These are the closest-lineage disclosures to the claimed process and are two years (and one day, respectively) ahead of the priority date.
• Gap: neither '789 nor '436 prominently discloses the user-movable marker with affirmative acceptance as a building-identification step, nor a coordinate handoff to oblique imagery.
• Fill: Florance supplies the movable-marker, user-confirmation mechanism; oblique imagery keyed to a selected location is itself known in the roof-estimation art (the '880 family's own products and the Kreft-style pitch disclosures show oblique/multi-view roof imagery), and the selection coordinates provide the standard key for retrieving the corresponding oblique view.
• Motivation: identical to § 5.2 — geocoding inaccuracy is a recognized defect in address-based roof-estimation workflows, and marker-based user correction was the known fix. A POSITA designing a more accurate roof-estimation service would combine the two Eagle View disclosures (or one of them) with Florance's marker selection as a matter of ordinary design improvement, with a reasonable expectation of success because all three concern the same imagery, same UI paradigm, and same goal.

This alternative is useful because it shows the obviousness conclusion does not depend on the fortuitous availability of the Sungevity reference — the same functional combination exists entirely within the applicants' own field's published art.

7. Level of ordinary skill and the Graham factors applied

POSITA: a person with a bachelor's degree (or equivalent experience) in computer science, software engineering, geomatics, civil/structural drafting, or a related field, plus 2–5 years of experience building or using aerial-imagery-based measurement, GIS/mapping, or CAD-style drafting tools — or comparable industry experience in roofing estimation. Such a person would be comfortable with: aerial imagery databases and coordinate systems; geocoding and lat/long translation; interactive map/imagery UIs with draggable markers; polygonal outline tracing and area computation; and web-based report delivery.

8. Conclusion

Under 35 U.S.C. § 103, US8542880B2's claims 1–20 are obvious:

1. Primary (adjudicated) combination — Kennedy (US8417061B2) + Florance (US20090132316A1) + Kreft (US7373244B2): Kennedy supplies the location-driven aerial roof-measurement system; Florance supplies the movable-marker user-selection mechanism that solves the known problem of imprecise address-based building identification (the Board's and CAFC's accepted "accuracy-improvement rationale"); Kreft supplies roof-pitch-direction determination. The combination renders independent claims 1 and 14 — and every dependent claim 2–13 and 15–20 — obvious, as held in IPR2022-00733 (FWD Oct. 20, 2023) and affirmed in Pictometry Int'l Corp. v. Nearmap US, Inc., No. 24-1290 (Fed. Cir., Oct. 27, 2025).
2. Alternative combination — US20080262789A1 / US20090132436A1 + Florance (+ Kreft): the same claims are obvious over the Eagle View/Pershing roof-estimation publications combined with Florance's marker-selection system, for the same accuracy-driven motivation and with a reasonable expectation of success.

Practical consequence: because the FWD has been affirmed and is final, the Director is obligated under § 318(b) to cancel claims 1–20, and no surviving claim of the '880 patent can be infringed. Any current assertion of US8542880B2 fails on the merits by citation to the IPR2022-00733 FWD and the 24-1290 affirmance. The same Kennedy-Florance-Kreft combination (and the Eagle View family art) is the starting point for § 103 attacks on the '880's continuation siblings (e.g., US8401222B2, US9244589B2, US9933254B2, US10197391B2, US10648800B2, US11060857B2), subject to each patent's own priority date and IPR history.

Unverified items to confirm before external use: (i) the specific Kreft disclosure details (US7373244B2) at the page/column level were not independently confirmed in this session; (ii) the exact FWD paper number for IPR2022-00733; and (iii) the § 318(b) certificate-of-cancellation entry date on USPTO Patent Center for patent 8,542,880.