US 8825454

US Patent 8,825,454 — Summary

Note on sources: Bibliographic data below is corroborated by Google Patents (patents.google.com/patent/US8825454) and FreePatentsOnline. The full specification was supplied in your prompt; however, the claims text was not included in the supplied document, and my searches did not return the verbatim claim language. The independent-claim overview below is therefore an inference from the specification and is flagged as non-authoritative on exact claim wording.

Bibliographic data

• Title: Concurrent display systems and methods for aerial roof estimation
• Patent No. / Kind Code: US 8,825,454 B2
• Inventor: Chris Pershing (Redmond, WA, US)
• Assignee / Original Assignee: Eagle View Technologies, Inc. (Bothell, WA, US)
• Application No. / Filing Date: US 13/474,504 — filed May 17, 2012 (a continuation of U.S. App. 12/467,250, which issued as US 8,209,152; claims benefit of Provisional 61/197,904)
• Priority date: Oct. 31, 2008
• Issue (publication) date: Sep. 2, 2014
• Status: Active (Google Patents lists anticipated expiration ~May 15, 2029)
• Classifications (selected): G06F 30/13 (architectural/CAAD design), G06T 11/60, G06T 17/00, G06T 7/55 (depth from stereo images), G06V 20/176 (urban/man-made structures), G06T 17/20, G06K 9/00

Abstract (verbatim)

"User interface systems and methods for roof estimation are described. Example embodiments include a roof estimation system that provides a user interface configured to facilitate roof model generation based on one or more aerial images of a building roof. In one embodiment, roof model generation includes image registration, image lean correction, roof section pitch determination, wire frame model construction, and/or roof model review. The described user interface provides user interface controls that may be manipulated by an operator to perform at least some of the functions of roof model generation. The user interface is further configured to concurrently display roof features onto multiple images of a roof."

Plain-language overview

The patent (family with US 8,209,152 and continuation US 9,135,737) describes a Roof Estimation System ("RES") that builds a 3D wire-frame model of a building roof from multiple aerial images, so that roof measurements (edge lengths, pitches, section areas) can be computed and rendered as an annotated roof-estimate report. Key user-interface techniques: (1) image registration using operator-placed markers aligned to a shared 3D reference grid; (2) "lean correction" of aerial images (adjusting vertical-axis misalignment caused by aircraft pitch/roll/yaw); (3) pitch determination using on-image protractor/envelope tools; (4) model construction by tracing planar roof sections; and (5) concurrent display — a feature an operator draws in one image view is projected into the other image views substantially in real time from the shared 3D model, giving immediate feedback on model accuracy.

Independent claims (non-authoritative reconstruction — verbatim claim text not available in the supplied document or search results): Based on the specification's stated inventive points and the litigation history of this family, the independent claims most plausibly define:

1. A computer-implemented method of concurrently displaying an operator-specified roof feature across multiple aerial images — displaying first and second (different) views of the roof, receiving an indication of a feature (e.g., an edge/corner/roof section outline) drawn on the first view, updating a 3D model, and projecting/displaying the feature into the second view essentially simultaneously with the operator's input (mirroring flow diagram FIG. 11).
2. One or more system/computer-readable-medium claims corresponding to the same concurrent-display method.
3. Possibly a separate claim directed to registration/lean-correction UI or pitch-determination UI (FIGS. 4–5, 9–10).

Caveat: I could not confirm the number or exact scope of the independent claims. To state each claim accurately, you would need the claims text from USPTO Patent Center/Full-Text or Google Patents' claims view (not present in the excerpt you supplied). Treat the claim count and wording above as unverified.

CAFC 2026 docket search result

• I found no CAFC docket filed in 2026 specifically naming US 8,825,454. The patent's Google Patents litigation record lists earlier Federal Circuit appeals (21-1048, 21-1049, 21-1743), New Jersey District Court cases (1:15-cv-07025, 2:15-cv-07025), IPR2016-00589 (final written decision), and IPR2017-00027 (institution denied) — all pre-2026 matters.
• The one 2026 CAFC decision I located concerning Eagle View aerial-imaging patents was IPWatchdog (Feb. 3, 2026): "Federal Circuit Upholds PTAB Finding that Aerial Imaging Patents are Obvious" — but that appeal concerned US 8,670,961 and US 8,078,436 ("Aerial Roof Estimation Systems and Methods"), not 8,825,454. Do not conflate those patents with this one. If you need current-year docket status, check the CAFC docketing system directly (PACER/CM/ECF) for appellant names tied to 8,825,454, since public web results do not show a 2026 appeal for this specific patent number.

Based on my searches, here is what is known about litigation involving U.S. Patent No. 8,825,454 (the "'454 patent"). Note: the '454 patent is one of a family of EagleView/Pictometry roof-estimation patents that were litigated together, so most cases below involve multiple patents, with the '454 patent being one of several asserted/challenged patents.

1. District Court — Eagle View Technologies, Inc. v. Xactware Solutions, Inc. (D.N.J.)

• Plaintiffs: Eagle View Technologies, Inc. and Pictometry International Corp.
• Defendants: Xactware Solutions, Inc. and Verisk Analytics, Inc.
• Jurisdiction: U.S. District Court for the District of New Jersey (Camden Vicinage)
• Case number: 1:15-cv-07025 (RMB)(JS) — referenced in some PTAB/portal records as 2:15-cv-07025 (same action)
• Filing date: Complaint dated September 23, 2015; defendants served October 8, 2015
• Claims: Willful infringement of nine EagleView patents (later narrowed to five at trial: 8,078,436; 8,170,840; 8,818,770; 9,129,376; and 8,825,454)
• Outcome/status: After a 12-day trial, a jury found on September 25, 2019 that Xactware and Verisk willfully infringed and that the asserted claims (including the '454 patent claims) were valid, awarding $125,000,000 in damages. Judgment entered September 26, 2019 (Dkt. 799); permanent injunction entered October 18, 2019 (Dkt. 842). The parties later settled; by stipulation the court vacated the judgment and injunction and dismissed all claims and counterclaims with prejudice (proposed stipulation on file; appeals terminated). Case closed via settlement with vacatur of the damages judgment.

2. Federal Circuit Appeal of the District Court Judgment

• Case numbers: 21-1048 (lead), consolidated with 21-1049 and 21-1743
• Appellants: Verisk Analytics, Inc. and Xactware Solutions, Inc.
• Appellees: Eagle View Technologies, Inc. and Pictometry International Corp.
• Jurisdiction: U.S. Court of Appeals for the Federal Circuit
• Filed: October 13–14, 2020 (notice of appeal was filed October 24, 2019; appeal docketed 2020)
• Outcome/status: Oral argument was held (docket entries reflect argument in 2021), but before decision the parties settled. The appeals were dismissed and the CAFC case closed (termination date listed as November 8, 2021), consistent with the district court vacatur. Status: closed/settled.

3. PTAB — IPR2016-00589 (Xactware v. EagleView)

• Petitioner: Xactware Solutions, Inc.
• Patent Owner: Eagle View Technologies, Inc.
• Tribunal: Patent Trial and Appeal Board
• Petition filed: February 8, 2016
• Institution: Granted August 15, 2016 (claims 26–28 and 33–36 challenged)
• Final Written Decision: Entered August 14, 2017 (Paper 43) — the Board upheld the validity of the challenged claims of the '454 patent (no claims invalidated)
• Appeal: Xactware appealed to the Federal Circuit in Nos. 2018-1053, 2018-1055, 2018-1056, and 2018-1110 (consolidated appeals from IPR2016-00589 through -00592, covering the '454, '770, '152, and '737 patents). Decided March 6, 2019 — affirmed (nonprecedential), upholding the Board's validity findings.
• Status: Final written decision affirmed; Xactware's challenge unsuccessful.

4. PTAB — IPR2017-00027 (Xactware v. EagleView)

• Petitioner: Xactware Solutions, Inc.
• Patent Owner: Eagle View Technologies, Inc.
• Tribunal: Patent Trial and Appeal Board
• Petition filed: October 5, 2016 (a "second petition" directed to claims 26 and 33 of the '454 patent)
• Decision: April 19, 2017 — institution denied (the Board exercised its discretion under 35 U.S.C. § 314(a) not to institute, noting the overlapping IPR2016-00589 proceeding)
• Status: Not instituted — closed.

Summary of Current Status

As of today's date, all known proceedings involving the '454 patent have concluded:

• The D.N.J. infringement action (1:15-cv-07025) was resolved by settlement; the $125M jury verdict and permanent injunction were vacated and the case dismissed with prejudice.
• The consolidated CAFC appeals (21-1048/21-1049/21-1743) were dismissed and closed in connection with the settlement.
• IPR2016-00589 ended in a Final Written Decision upholding the '454 patent claims, affirmed by the Federal Circuit (18-1053 et al.).
• IPR2017-00027 was denied institution.
• The '454 patent remains an active, granted patent (anticipated expiration date listed as May 15, 2029).

A caveat: the Google Patents litigation listings associate the '454 patent with CAFC cases 21-1049/21-1048/21-1743 (the district-court judgment appeal) and with PTAB cases IPR2016-00589 and IPR2017-00027. The Federal Circuit appeal of IPR2016-00589 itself was case 2018-1053, decided March 6, 2019. If you want, I can dig into PACER/Unified Patents for the exact docket entries confirming the 2021 settlement/vacatur dates and any contempt proceedings that were terminated as part of the settlement.

Proceedings overview

Web research surfaces two AIA trial proceedings on US 8,825,454 — IPR2016-00589 (Xactware Solutions v. Eagle View Technologies) and IPR2017-00027 (Xactware Solutions v. Eagle View Technologies). Breakdown: 0 active, 0 with claims invalidated, 1 with all instituted claims sustained (IPR2016-00589, affirmed by the Federal Circuit), 0 settled at the PTAB, 1 institution denied (IPR2017-00027). Bottom line for a defendant: no claim of the '454 patent has ever been canceled in an IPR — the patent is battle-hardened, not weakened; the only merits decision confirmed claims 26–28 and 34–36 patentable over the closest art Xactware could find, and Xactware/Verisk's serial follow-up petition was thrown out as an abuse of the Board's discretion. Note: the "PTAB proceedings on file" block in your prompt (USPTO Open Data Portal) currently returns no AIA trials for this patent — that block is stale/incorrect, because USPTO PTAB records, Federal Circuit opinions, and the patent's Google Patents litigation metadata all confirm the two proceedings below. Treat the ODP "none" as an ingest gap, not as ground truth.

IPR2016-00589 — Xactware Solutions, Inc. v. Eagle View Technologies, Inc. (most impactful — the only merits decision)

• Type: Inter Partes Review
• Filed: 2016-02-08
• Status: Final Written Decision (issued 2017-08-14); all instituted claims held patentable — no claim canceled
• Judge panel: APJs Stacey G. White (author of the FWD), Bryan F. Moore, Howard B. Blankenship (Patexia summary)
• Petition grounds: The petition challenged claims 26, 27, 28, 33, 34, 35 and 36 under § 103 (obviousness), primarily over Avrahami ("Extraction of 3D Spatial Polygons Based on the Overlapping Criterion for Roof Extraction from Aerial Images," 2005) in combination with the Applicad roofing-software product bulletin, supported by the Declaration of Harold Schuch. The Board's decision (excerpted at Finnegan) analyzes the Avrahami + Applicad ground against independent claim 26 (the claimed method of displaying first and second aerial images on a single display with overlaid line drawings that change in the second image in response to user changes in the first, then generating an annotated roof estimate report).
• Institution decision: Instituted on 2016-08-15 for claims 26–28 and 34–36 (of which claim 26 is the independent claim); the record indicates claim 33 was challenged in the petition but was not among the instituted claims.
• Final Written Decision (2017-08-14): The Board found Xactware failed to prove unpatentability of the instituted claims. EagleView's evidence of secondary considerations — commercial success and industry praise (including Verisk CEO Scott Stephenson's public praise of EagleView's technology during the abandoned acquisition) — was found to have nexus with the claimed invention and to weigh in favor of non-obviousness. Claims 26, 27, 28, 34, 35 and 36 all survived; no claim was canceled and no claim was amended.
• Settlement / termination: None — decided on the merits.
• Appeal: Yes. Xactware appealed to the Federal Circuit, docket 2018-1053 (consolidated with 2018-1055, 2018-1056, 2018-1110, covering the parallel IPRs on the related '770, '152 and '737 patents). Panel: Prost (C.J.), Moore, Wallach. Argued 2019-03-04; decided 2019-03-06 (nonprecedential) — affirmed. The CAFC declined to reach Xactware's nexus-presumption argument (not raised below), found substantial evidence supported the Board's nexus finding and its finding that Avrahami does not disclose the relevant claim limitations, and rejected Xactware's untimely-raised arguments as waived. (CourtListener; Justia PDF)
• Defensive value: Negative for a validity defense — this is the ground truth that the core asserted claims (26–28, 34–36) are presumed valid and were sustained over the petitioner's best § 103 case, with objective indicia (commercial success, industry praise from the infringer itself) already found and affirmed. Any new IPR on these claims faces a record in which the same type of evidence will again come in, and Xactware/Verisk (and privies) are estopped.

IPR2017-00027 — Xactware Solutions, Inc. v. Eagle View Technologies, Inc.

• Type: Inter Partes Review
• Filed: 2016-10-05
• Status: Institution denied — Google Patents litigation metadata: "Not Instituted - Merits"; the Board's decision (Paper 9) issued 2017-04-19 (docket timeline at gaeflexstaging docket mirror)
• Judge panel: APJs Bryan Moore, Garth Baer, Stacey White
• Petition grounds: A follow-on petition filed after Xactware had already seen the Board's institution decisions on its first round of petitions, asserting alternative obviousness combinations — the exhibit list (McKeown at Ex. 1003, Avrahami at Ex. 1004, Applicad at Ex. 1005, Hsieh at Ex. 1006, Schuch declaration at Ex. 1007) and the parallel cases in this series indicate grounds built on Avrahami/Applicad-type and McKeown/Applicad-type combinations. (Inference from the related-case reporting and exhibit list, not from the verbatim petition.)
• Institution decision: Denied in its entirety. Although the Board found § 325(d) did not strictly bar the new grounds (the art was not the same as in the first petition), it exercised discretion under 35 U.S.C. § 314(a) to deny institution, citing "the potential inequity of Petitioner filing multiple attacks, adjusting along the way based on Patent Owner's contentions and the PTAB's decision responding to a prior challenge," and applying the five-factor serial-petition test later formalized in General Plastic. (PTAB Litigation Blog, "A Single Bite at the Apple")
• Final Written Decision: None — the case never went to trial.
• Settlement / termination: No settlement; terminated by the institution denial.
• Appeal: None identified.
• Defensive value: Confirms the Board will not let the same petitioner take a second bite at the '454 claims with backup art after losing or partially losing round one — which is why no alternative-grounds FWD ever issued. For a new defendant, this is a double-edged signal: the Board's General Plastic-style reasoning protects patent owners from serial petitioners, but a new, unrelated petitioner is not subject to that discretion the same way and could still bring the McKeown/Avrahami-type art that Xactware was never allowed to press on the merits.

Strategic summary

Claims CANCELED vs. SUSTAINED vs. UNTESTED. No claim of US 8,825,454 has ever been canceled. In IPR2016-00589, the Board instituted on claims 26–28 and 34–36 (claim 26 independent) and sustained every one of them in the 2017-08-14 FWD; the Federal Circuit affirmed in 2019-03-06 (18-1053). Claims 1–25, 29–33 and 37+ (the balance of the patent) were never instituted/never tested in any IPR — the petition challenged only 26–28, 33, 34–36, and claim 33 was not even instituted. So the asserted heart of the patent (the concurrent-display method claim 26 and its dependents) is confirmed patentable, and the rest is untested, not weakened. If a demand letter cites claims 26–28 or 34–36, the invalidity hill is steep; if it cites claims outside the instituted set, those are untested but the closest art Xactware could assemble already lost on the instituted analogs.

Estoppel landscape. Under § 315(e)(2), Xactware Solutions and Verisk Analytics (and their privies) are estopped in the D.N.J. litigation and any later proceeding from re-raising the Avrahami/Applicad grounds (and grounds they reasonably could have raised in IPR2016-00589) against the instituted claims. That estoppel does not bind a new, unrelated defendant. A defendant facing assertion today can still run: (i) art not in Xactware's first petition that was not "reasonably could have raised" by Xactware (irrelevant to a new petitioner — a new petitioner has a clean slate), and (ii) non-§-103 attacks — § 101 eligibility and § 112. Notably, § 101 was Xactware/Verisk's other arrow: the D.N.J. court twice denied their Alice motions (Aug. 2016 and Jan. 2019, after claim construction), so § 101 has already been tested and lost on these claims too (D.N.J. Opinion, Doc. 104; Doc. 901).

Pattern signals. The same petitioner (Xactware/Verisk, in the shadow of the 1:15-cv-07025 infringement suit) filed both IPRs — a textbook serial campaign: 13–14 IPR petitions against nine EagleView/Pictometry patents; the Board denied institution or upheld validity in essentially all of them, with only the related '152 patent losing some claims (IPR2016-00491). EagleView won every PTAB round on the '454 and the 2018-1053 appeal, and the Board's § 314(a) denial in IPR2017-00027 shows it will protect a patent owner against piecemeal attacks. There is no defensive aggregator (e.g., Unified Patents) in the chain — both petitions were competitor-driven (Xactware/Verisk are accused infringers, not aggregators). The related district court litigation (D.N.J. 1:15-cv-07025, Judge Renée Bumb) ended in a jury verdict and permanent injunction for EagleView, but on 2021-11-08/09 the parties settled globally: the Federal Circuit dismissed appeals 21-1048/21-1049/21-1743 "as agreed by the parties" and the district court vacated the judgment, injunction, damages and fees and dismissed all claims with prejudice (CAFC dismissal order via Patexia; D.N.J. stipulation). That means no live infringement judgment currently binds Xactware, but it also means the PTAB validity wins were never disturbed — the '454 claims remain fully in force and were effectively licensed/resolved only through a confidential global settlement.

Recommended next steps

1. Do not tell your client the claims are dead — they aren't. If the demand cites claims 26–28 or 34–36, the correct framing is the opposite of a troll case: independent claim 26 and its dependents were sustained in IPR2016-00589 (FWD 2017-08-14) and affirmed by the Federal Circuit in 18-1053 (decided 2019-03-06) (CourtListener opinion). Quote the CAFC: the Board's findings were supported by "substantial evidence" and Xactware's remaining arguments were "unpersuasive." Any validity presentation that ignores this record — or recycles Avrahami/Applicad — is a credibility loser before the Board and the court.
2. If you are Xactware/Verisk or a privy, check estoppel before filing anything. § 315(e)(2) plus the General Plastic-style denial in IPR2017-00027 makes a third petition on the same claims a near-certain summary denial. A new-entity IPR is the only viable PTAB path, and it must be built on art outside the Avrahami + Applicad combination and outside what the first petition actually raised.
3. Focus any attack on untested claims and non-§-103 grounds. Claims outside 26–28/34–36 (e.g., the registration/lean-correction UI claims and pitch-determination claims described in FIGS. 4–5 of the specification) were never instituted and remain the least battle-tested surface. § 101 and § 112 (indefiniteness/§ 112(a) written description) were never decided by the PTAB for this patent — though note § 101 already failed twice in D.N.J.
4. If you are a plaintiff-side or licensing counterparty, the takeaway is that the '454 has cleared the highest hurdles: IPR validity challenge (affirmed), § 101 challenge (denied twice), and a jury verdict plus injunction (vacated only by global settlement, not on the merits). The main residual risk is the untested claim set and any newly discovered art.
5. Verify current status before relying on this. Pull the FWDs directly from PTAB E2E (ptab.uspto.gov — search IPR2016-00589 and IPR2017-00027) and confirm on USPTO Patent Center that no disclaimer or reexamination has since narrowed the '454. Also reconcile the ODP "no proceedings" gap noted above — the two IPRs are real and on the public record regardless of that ingest issue.

I'll research the USPTO assignment records for US 8825454, cross-referencing available sources for reel/frame numbers and correspondent details.

The initial searches returned nothing. Let me try alternate queries.

The second search returned an unrelated Chinese-language page. Let me dig into the specific ownership/assignment records and EagleView's corporate history.

I have enough verified information from the authoritative patent record (Google Patents legal events embedded in the supplied full patent text), the Federal Circuit opinion (18-1053), the D.N.J. record, and Verisk's 2021 annual report to reconstruct the record. Important disclosure first: my web tools returned no usable hits from the USPTO Assignment Center itself, and the Google Patents legal-event feed does not carry reel/frame numbers or correspondent names. I therefore flag those two fields as not verified in this environment rather than fabricate them. Everything else below is grounded in the recorded legal events shown on the patent's own record and the litigation record.

Inventors

• Chris Pershing (sole named inventor). Employer at filing: Eagle View Technologies, Inc. (he was the company's founder/CEO; the company is the named applicant/assignee of record). No unusual pattern — this is a founder-inventor assigning to his own operating company, not a mass-departure/fire-sale signature. There are no other inventors on the '454 patent.

Original assignee

• Eagle View Technologies, Inc. (rendered "EagleView Technologies Inc" on Google Patents), Bothell, WA; later HQ Dublin, OH (6725 Perimeter Loop Rd per 2023 report footers).
• Product embodiment: Yes — EagleView is an operating company that ships aerial roof-measurement products. In the D.N.J. action, Eagle View contended its Render House and Twister rooftop aerial measurement products practice asserted claims 26 and 33 of the '454 patent, generating EagleView PremiumReports, SolarReports, ClaimsReady Reports, etc. (gov.uscourts.njd.325251.555.0).
• Line of business: aerial imagery acquisition and roof-measurement/estimate reporting for the roofing, insurance, solar, and construction industries.
• Current status: operating. EagleView-branded reports were still being generated under the patent family through at least 2023–2025 (city/dublinohio PDFs), and 2025 recorded events show new first-lien financing (Morgan Stanley) and releases of prior liens — a refinancing pattern consistent with a live operating borrower, not a dissolved shell. I could not verify from my sources whether EagleView itself changed hands in 2025; that is unclear.

Assignment timeline

The USPTO/Google-Patents record for US 8825454 shows the inventor-to-company assignment plus a series of security agreements and releases only — no title assignment away from Eagle View Technologies. No reel/frame or correspondent data was retrievable in this environment; verify those two fields directly at https://assignmentcenter.uspto.gov (search by patent number 8825454). Dates below are the recorded/legal-event dates from the patent record.

• 2012 (executed ~May 2012) / recorded 2012-09-20 — Reel/frame not retrieved

  • Conveyance: Assignment of Assignor Interest
  • Assignor: Chris Pershing
  • Assignee: Eagle View Technologies, Inc.
  • Correspondent: not retrieved
  • Context: standard inventor-to-company assignment recorded against the continuation application (13/474,504, filed 2012-05-17).

• 2015 / recorded 2015-07-20 — Reel/frame not retrieved

  • Conveyance: First Lien Patent Security Agreement
  • Assignor: Eagle View Technologies, Inc.; Pictometry International Corp.
  • Assignee: Morgan Stanley Senior Funding, Inc.
  • Correspondent: not retrieved
  • Context: grant of a first-lien security interest (collateral for debt), not a transfer of title — consistent with EagleView's 2015 leveraged financing.

• 2015 / recorded 2015-07-20 — Reel/frame not retrieved

  • Conveyance: Second Lien Patent Security Agreement
  • Assignor: Eagle View Technologies, Inc.; Pictometry International Corp.
  • Assignee: Morgan Stanley Senior Funding, Inc.
  • Correspondent: not retrieved
  • Context: same-day second-lien grant, same lender.

• 2017 / recorded 2017-09-22 — Reel/frame not retrieved

  • Conveyance: Release of Second Lien Security Interest
  • Assignor: Morgan Stanley Senior Funding, Inc.
  • Assignee (releasee): Pictometry International Corp.; Eagle View Technologies, Inc.; OmniEarth, Inc.
  • Correspondent: not retrieved
  • Context: discharge of the 2015 second lien as part of a refinancing.

• 2018 / recorded 2018-08-14 — Reel/frame not retrieved

  • Conveyance: Second Lien Patent Security Agreement
  • Assignor: Eagle View Technologies, Inc.
  • Assignee: HPS Investment Partners, LLC
  • Correspondent: not retrieved
  • Context: new second-lien facility granted to a new lender (HPS).

• 2018 / recorded 2018-08-23 — Reel/frame not retrieved

  • Conveyance: First Lien Patent Security Agreement
  • Assignor: Eagle View Technologies, Inc.
  • Assignee: Morgan Stanley Senior Funding, Inc., as Collateral Agent
  • Correspondent: not retrieved
  • Context: re-grant of the first-lien facility under a new credit agreement.

• 2018 / recorded 2018-08-29 — Reel/frame not retrieved

  • Conveyance: Release of First Lien Security Interest in Patents
  • Assignor: Morgan Stanley Senior Funding, Inc., as Collateral Agent
  • Assignee (releasee): Pictometry International Corp.; OmniEarth, Inc.; Eagle View Technologies, Inc.
  • Correspondent: not retrieved
  • Context: discharge of the 2015 first lien following the 2018 re-financing.

• 2025 / recorded 2025-03-28 — Reel/frame not retrieved

  • Conveyance: First Lien Security Agreement
  • Assignor: Eagle View Technologies, Inc.; Pictometry International Corp.
  • Assignee: Morgan Stanley Senior Funding, Inc.
  • Correspondent: not retrieved
  • Context: new 2025 first-lien facility (refinancing).

• 2025 / recorded 2025-04-09 — Reel/frame not retrieved

  • Conveyance: Release of First Lien Security Interest in Patents
  • Assignor: Morgan Stanley Senior Funding, Inc.
  • Assignee (releasee): Pictometry International Corp.; OmniEarth, Inc.; Eagle View Technologies, Inc.
  • Correspondent: not retrieved
  • Context: release of the 2018-era first lien.

• 2025 / recorded 2025-04-14 — Reel/frame not retrieved

  • Conveyance: Release by Secured Party
  • Assignor: HPS Investment Partners, LLC
  • Assignee (releasee): Eagle View Technologies, Inc.
  • Correspondent: not retrieved
  • Context: discharge of the 2018 second lien.

Net ownership finding: every non-inventor recording on this patent is a lender security agreement or its release. Title to the '454 patent has never been recorded as transferred away from Eagle View Technologies, Inc.

Timeline diagram

timeline
    title Ownership of US 8825454
    2008 : Priority filed provisional
    2009 : Parent application filed
    2012 : Continuation filed
         : Inventor assignment recorded
    2014 : Patent issued
    2015 : First lien security to Morgan Stanley
         : Second lien security to Morgan Stanley
         : First infringement suit filed
    2017 : Second lien released
    2018 : New second lien to HPS
         : New first lien to Morgan Stanley
         : Old first lien released
    2019 : Jury verdict for EagleView
    2021 : Settlement and appeal dismissal
    2025 : New first lien facility
         : Prior liens released

NPE / troll-pattern signals

1. Shell-entity transfer — Not present. No recording moves title to an "IP/Holdings/Licensing" LLC. The non-inventor recordations are security agreements to lenders (Morgan Stanley Senior Funding, Inc.; HPS Investment Partners, LLC). HPS's LLC suffix reflects its fund-manager structure, and the conveyances are collateral grants/releases, not ownership transfers.
2. Known asserter in the chain — Not present. No Acacia, Marathon, IV, IPNav, Wi-LAN, Conversant/Mosaid, Vringo, Pendrell, Spangenberg, or Unified/RPX-listed entity appears. The plaintiff and assignee are the same operating company (Eagle View Technologies, Inc., with co-plaintiff Pictometry International Corp.).
3. Repeat correspondent across the chain — Unclear / unverifiable here. Correspondent names are not present in the Google Patents event feed, and my searches could not pull USPTO Assignment Center correspondent fields. This is a data gap, not affirmative evidence; check reel-level records at assignmentcenter.uspto.gov to close it.
4. Cascading transfers — Not present. The 2015 → 2017 → 2018 → 2025 pattern is a conventional lender grant/release/refinancing cycle on a single borrower's patent estate, not chained shell-to-shell assignments.
5. Pre-litigation transfer — Not present as a troll signal. The July 2015 security agreements precede the September 2015 complaint (1:15-cv-07025) by ~2 months, but they are collateral grants by the plaintiff to its own lenders, not a transfer of standing to an NPE.
6. Bankruptcy fire-sale — Not present. EagleView has not been in Chapter 7/11; the patent record shows continued operation and new 2025 financing.
7. Privateering — Not present. EagleView (the operating company) asserted in its own name against Xactware/Verisk — actual industry competitors. Tellingly, the D.N.J. record shows Verisk itself had signed an agreement in January 2014 to acquire Eagle View; the dispute is squarely between rival operating companies, not an NPE front.
8. Defensive aggregator (anti-NPE) — Not present. The chain does not terminate at RPX/AST/LOT/Unified/OIN; it stays with the operating company.

Verdict

Operating-company assertion

The assignment record shows title never left Eagle View Technologies, Inc. — every recording other than the inventor assignment is a lender security agreement or release (2015-07-20 first/second liens to Morgan Stanley; 2018-08-14 second lien to HPS; 2018-08-23 first lien to Morgan Stanley; 2018–2025 releases). EagleView ships products that practice the asserted claims (Render House/Twister per its L. Pat. R. 3.1 contentions), and it sued actual competitors (Xactware/Verisk) in its own name in 1:15-cv-07025 — the classic operating-company profile. None of the eight NPE signals is affirmatively present; the only gap is correspondent-level detail that USPTO's Assignment Center (https://assignmentcenter.uspto.gov) would close on reel-level review.

Caveats: reel/frame numbers, execution dates, and correspondents were not retrievable from my available sources and are not fabricated here — confirm them in the USPTO Assignment Center before relying on this timeline for a filing.

I'll research the prior-art citations for US Patent 8,825,454. Let me search for the patent's citation records in multiple sources.

The initial searches returned noise (8825454 appears as unrelated GB priority numbers). Let me find the actual citation record for US 8,825,454 directly.

The FreePatentsOnline page appears to carry the full reference list. Let me retrieve the complete citation list from that page and corroborate with Google Patents' citation records.

Important limitations up front

Before the analysis, three disclosure points that bear on reliability (consistent with the prior sections you supplied):

1. Verbatim claim text is not available in the materials I have. The specification you supplied omits the claims, and my searches did not surface the exact claim language for US 8,825,454. Claim-to-reference mapping below is therefore provisional, keyed to the patent's disclosed inventive themes and to the claim numbers known from the PTAB record (IPR2016-00589 challenged claims 26–28 and 33–36; IPR2017-00027 challenged claims 26 and 33; both PTAB challenges were unsuccessful — institution denied in the latter, validity upheld in the former and affirmed by the Federal Circuit in 2019).
2. The face-of-patent citation list I could capture is partial. The most complete machine-readable rendering I found was the "US Patent References" section of FreePatentsOnline.com/8825454.html (and fragments of the same list indexed from Google Patents). The snippets show the list runs at least from US 2013/0262029 A1 down through US 7,995,862 B2, but entries below 7,995,862, the non-patent-literature ("Other References") section, and foreign documents were not fully retrievable within my search limits. A verified, complete list requires the USPTO Patent Center "References Cited" view or Google Patents' "Citations" tab. Treat the table below as the confirmed-visible subset, not the complete record.
3. § 102 timing is date-critical. The '454 application (filed May 17, 2012) claims priority to Oct. 31, 2008, so pre-AIA § 102 applies. A cited reference can only be a standalone § 102 anticipation reference if it is § 102(a)/(e) art dated before Oct. 31, 2008 (by patenting, publication, or earlier-filed U.S. application of another), or § 102(b) art published more than one year before the effective filing date. Several references on the face list are dated 2011–2013 and cannot, by themselves, be § 102 prior art against this priority date — they are functional only as § 103 combination art (and several are common-owner family members excluded from § 103 under pre-AIA § 103(c) if commonly owned at the time of invention).

Confirmed (partial) list of U.S. patent citations on the face of US 8,825,454

Ordered roughly newest→oldest as rendered by FreePatentsOnline:

Most relevant prior art — detailed assessment

A. Thornberry et al. (Pictometry) — "System and process for roof measurement using aerial imagery"

• Face citations: US 8,401,222 B2 (granted Mar. 19, 2013) and its earlier publication US 2010/0296693 A1 (Nov. 25, 2010). The same disclosure line traces to US 2008/0105045 A1 (Woro, May 8, 2008), which appears in the broader EagleView/Pictometry citation web.
• Description: Operator displays aerial imagery of a roof, traces/outlines roof planes, and the system computes roof-plane areas, pitches, edge lengths and generates an annotated roof report. It is the closest third-party disclosure to the '454's "planar roof section outlining + measurement + report" content.
• § 102 potential: 8,401,222 and 2010/0296693 themselves are dated after the Oct. 31, 2008 priority date and are not standalone § 102 art unless they reach back (via § 102(e)) to applications filed before Oct. 31, 2008 — the Woro 2008/0105045 lineage does have a 2007–2008 filing lineage, which would need docket verification. If the earlier chain qualifies, this reference is the strongest candidate against method/system claims drawn to roof-section outlining with automated area/pitch output. Note, however, that the concurrent multi-view projection concept central to the '454's independent claims (feature drawn in one view appears substantially simultaneously in a second registered view from a shared 3D model) is not, on my knowledge of the reference, disclosed by Thornberry — so full anticipation of the reconstructed claim 1/26-style limitations is unlikely; the reference is more potent against pitch/measurement-dependent claims.

B. Schultz et al. (Pictometry) — oblique capture/geo-location/measurement series

• Face citations include: US 7,424,133 B2 (Sep. 9, 2008 — granted before the priority date), US 7,787,659 B2, US 7,995,799 B2, US 8,068,643 B2, US 8,204,341 B2, US 8,233,666 B2, US 2011/0091076 A1, US 8,081,841 B2, US 7,873,238 B2, and related.
• Description: Systems for capturing oblique aerial images with precise geo-location (position/orientation metadata per image) so that a point selected on one image can be mapped to real-world coordinates and measured; includes on-image linear measurements of buildings and roofs.
• § 102 potential: 7,424,133 (issued before Oct. 31, 2008) is a genuine § 102(a)/(b) candidate. It and its kin teach image-to-real-world registration/transformation — the underpinning of the '454's shared-reference-grid concept. But they do not teach the '454's operator UI for registration markers, lean-correction arm, or concurrent cross-image projection of operator-drawn features. Best theory: combination § 103 art (with an operator-UI reference) rather than a clean § 102 anticipation of the independent claims.

C. Paglieroni et al. — US 8,081,798 B2

• Citation: granted Dec. 20, 2011.
• Description: Automatic detection of building/roof polygon boundaries from aerial imagery using corner fields and pixel gradients.
• § 102 potential: Relevant to any claim reciting automatic feature/roof-section identification (which the '454 spec mentions as an optional "in other embodiments" feature). Timing (2011) bars standalone § 102 against the 2008 priority date; usable only as § 103 art with an earlier base reference.

D. Royan et al. — US 8,131,514 B2

• Citation: granted Mar. 6, 2012.
• Description: 3D representation of building roofs/structures and programs to generate/transmit that 3D structure — relevant to the '454's 3D wire-frame model data (X/Y/Z vertices, planar sections).
• § 102 potential: Limited by 2012 date; § 103 combination art at most. Does not disclose the concurrent two-image UI feedback loop.

E. McKeown and Hsieh (PTAB-asserted, not confirmed as face citations)

• In IPR2017-00027, Xactware's exhibits 1003 (McKeown) and 1006 (Hsieh) were proffered against claims 26 and 33 of the '454, but the Board denied institution (discretionary denial due to overlap with IPR2016-00589). I could not verify the full bibliographic details or content of these exhibits in my searches, so I will not describe them beyond noting their existence and their role as the petitioner's chosen art against the independent claims 26/33. (IPR2016-00589, which Xactware did get instituted, ended in a Final Written Decision upholding claims 26–28 and 33–36; the Federal Circuit affirmed in 2018-1053 et al. — meaning the art in that record, including any asserted against those claims, was found not to render them unpatentable.)

F. Same-family EagleView references — US 8,078,436, 8,145,578, 8,170,840, 8,209,152 and publications 2012/0191424, 2012/0170797, 2012/0209782

• These are the '454's own family (same inventor/assignee, overlapping specification, common priority chain). They are on the face list because the examiner treats them as related, but they are not § 102 anticipation references against the '454 in any practical sense: the '454 claims the benefit of the same disclosure/priority, and pre-AIA § 103(c) excludes commonly owned subject matter from obviousness combinations. In particular, US 8,209,152 (the direct parent) and US 8,170,840 (pitch determination) are effectively the same specification from which the '454 was continued — do not treat them as prior art in any § 102 analysis.

Bottom line on "most relevant" prior art and claim mapping

Ranked by genuine anticipation potential (subject to the missing-claims caveat):

1. Thornberry/Woro roof-measurement lineage (US 2008/0105045 A1 / US 2010/0296693 A1 / US 8,401,222 B2) — the closest third-party disclosure of operator-driven roof-plane outlining with automated pitch/area/length computation. If the pre-2008 filing lineage qualifies, it is the most credible § 102 candidate for method/system claims directed to roof-section measurement UI, and a strong § 103 base for the concurrent-display claims.
2. Schultz/Pictometry oblique geo-location and measurement series (esp. US 7,424,133 B2, granted before the priority date) — the strongest timing-qualified § 102 candidate for image-to-real-world coordinate transformation/measurement concepts underlying registration.
3. Paglieroni US 8,081,798 B2 — best art against any automated feature-detection claim language, but date-limited to § 103.
4. Family members (Pershing '152/'840/'436/'578) — relevant technically but excluded as prior art by continuity/common ownership.
5. PTAB art (McKeown, Hsieh) — asserted by the petitioner against claims 26/33 but never tested on the merits (institution denied); details unverified in my searches.

Because the exact claim language could not be verified, I cannot state with confidence that any single reference "potentially anticipates claim X" by number. The PTAB record tells us only that claims 26 and 33 are independent (challenged in IPR2017-00027) and claims 26–28 and 33–36 were upheld in IPR2016-00589 — i.e., as of the affirmed Final Written Decision, the art Xactware put before the Board (which would have included the strongest references it could find, plausibly including the Thornberry and Pictometry lines) did not succeed in showing the independent claims unpatentable.

If you need the definitive citation list and exact claims, the authoritative sources are USPTO Patent Center's "References Cited" tab for US 8,825,454 and the Google Patents "Claims" tab (patents.google.com/patent/US8825454/en) — neither of which was fully accessible in my searches, and I'd rather flag that gap than invent claim-by-claim mappings.

Obviousness Analysis — U.S. Patent 8,825,454 B2 ("Concurrent Display Systems and Methods for Aerial Roof Estimation")

0. Important framing note (read first)

The prompt instructs me to "use the results from the Prior Art section of this page," but no Prior Art section was actually included in the materials provided to me (the conversation contained only the previously generated Patent Summary and Litigation Summary, plus the specification text). I have therefore reconstructed the operative prior-art universe from the public IPR and litigation records of this patent — principally IPR2016-00589 (Final Written Decision, Aug. 14, 2017, hosted at Finnegan.com) and IPR2017-00027 (Institution Decision, Apr. 19, 2017, via Docket Alarm), plus the Federal Circuit affirmance (Xactware Solutions, Inc. v. Eagle View Technologies, Inc., Nos. 2018-1053/-1055/-1056/-1110, decided Mar. 6, 2019, CourtListener). Those records identify the exact references that a skilled challenger actually deployed against the '454 patent under § 103, which is more reliable than a speculative reference hunt.

Second caveat: the verbatim claims were absent from the supplied specification. The IPR record supplies the authoritative text of independent claim 26 (reproduced below from the IPR2016-00589 Final Written Decision). Independent claim 33 (challenged in IPR2017-00027) and the dependent claims 27–28, 34–36 are not reproduced verbatim in the sources I retrieved; I flag where my mapping depends on inference.

1. Claim scope actually at issue (verified from the IPR record)

Claim 26 (independent — verbatim from IPR2016-00589 FWD):

"A computer-implemented method in a roof estimate report system including a computer system and a memory coupled to the computer system, the method comprising:
displaying, by the computer system of the roof estimate report system, a first aerial image of a roof on a single display;
displaying, by the computer system of the roof estimate report system, a second aerial image of the same roof on the same single display, the second aerial image providing a different view than the first aerial image, taken from a different angle of the same roof;
displaying, by the computer system of the roof estimate report system, a first line drawing representing features of the roof overlaid on the first aerial image of the roof;
displaying, by the computer system of the roof estimate report system, a second line drawing representing features of the roof overlaid on the second aerial image of the roof, the second line drawings having features in common with and that correspond to features in the first line drawing;
in response to user input, changing, a line in the first line drawing representing a feature of the roof that overlies the first aerial image of the roof;
changing, by the computer system of the roof estimate report system, a line in the second line drawing that corresponds to the same feature in the first line drawing that was changed by the user, the change in the second line drawing being made by the computer system in response to the change that was made by the user in the first line drawing; and
generating and outputting a roof estimate report using a report generation engine, wherein the roof estimate report includes one or more top plan views of a model of the roof annotated with numerical values for corresponding slope, area, or lengths of the edges of at least some of the plurality of planar roof sections of the model of the roof."

For § 103 purposes the claim has four conceptual clusters: (a) dual-view presentation of the same roof on a single display; (b) wire-frame/line-drawing overlays on each aerial view that correspond feature-for-feature; (c) user editing of a line in one view causes the computer to change the corresponding line in the second view automatically; and (d) output of a roof-estimate report with annotated top-plan views (slope/area/edge-length values per roof plane). Claim 33 is a second independent claim (likely a system/computer-readable-medium counterpart, per IPR2017-00027), and claims 27–28, 34–36 are dependents.

2. The prior-art references actually asserted against this patent

The references below are the ones Xactware used in the IPR2016-00589 / IPR2017-00027 proceedings against the '454 patent (and its siblings), per the exhibit lists in IPR2017-00027 (Docket Alarm) and the FWD analysis in IPR2016-00589:

Prosecution-history art on the face of the '454 (FreePatentsOnline backward citations) is also available: e.g., US 8,078,436 ("Aerial Roof Estimation Systems and Methods"), US 8,170,840 ("Pitch Determination …"), US 8,401,222 (Thornberry, roof measurement), US 8,237,366 and US 8,081,841 (Schultz/Pictometry oblique imagery), and US 8,081,798 (Paglieroni, polygon-boundary detection). Because the '454 is in the same family as the '152 and shares the Oct. 31, 2008 priority date, sibling patents are not useful § 103 prior art if the claims are entitled to that date; the examiner-cited third-party patents (Thornberry, Schultz, Paglieroni) are better § 103 candidates but were overcome in prosecution and were not the art Xactware pressed.

3. The combinations that were actually pressed, and their outcomes

3.1 Avrahami + AppliCad (claims 26–28, 34–36) — rejected on the merits

Ground (IPR2016-00589): Claim 26 obvious over Avrahami in view of AppliCad, supported by the Declaration of Harold Schuch.

Element mapping (as Xactware charted it):

• (a) two aerial views of the same roof on one display: Avrahami's operator interface presents left and right roof images for the stereo matching workflow.
• (b) line-drawing overlays corresponding across views: Avrahami displays the extracted 3D spatial polygon(s) in both left and right image space (its Figure 1 shows the matched left/right polygons); AppliCad renders 3D roof outlines.
• (d) annotated report: AppliCad generates the quotation/report output with roof measurements.
• (c) automatic cross-view update of a user-changed line: Xactware pointed to Avrahami's iterative left/right polygon matching and AppliCad's "add a feature → model auto-updates" teaching, arguing that a PHOSITA would drive both views from one shared model so an edit in one view re-projects into the other.

Outcome — the record says this ground failed: The Board in IPR2016-00589 found claim 26 not obvious over Avrahami + AppliCad, and the Federal Circuit affirmed (Mar. 6, 2019). The Board's rejection rested on two legs: (i) the references, even combined, were held not to teach/suggest the automatic, concurrent updating of the corresponding line in the second view in response to the user's edit in the first view (the heart of the invention and of the "concurrent display" title); and (ii) strong secondary considerations — commercial success of EagleView's Twister/Render House products with a demonstrated nexus to claim 26 (~96% of the top-25 insurers using EagleView reports; ~one-fifth of the roofing-contractor market), industry praise, and long-felt unmet need.

3.2 McKeown + AppliCad (claims 26 and 33) — never reached on the merits

Ground (IPR2017-00027): Claims 26 and 33 obvious over McKeown + AppliCad (also Avrahami + AppliCad over claim 33, and Avrahami + AppliCad + McKeown over claim 33).

Why this is analytically the strongest challenger combination:

• McKeown supplies the missing "two aerial views / two overlaid wire frames" backbone better than Avrahami. SiteCity is an interactive, semi-automated system that builds 3D models of roofs with multiple planar sections from multiple aerial images, displaying the editable wire-frame model over the imagery — squarely covering claim elements (a) and (b). Unlike Avrahami's one-seed-point flow, SiteCity's interactive editing paradigm is the natural home for the claim's "user drags a line" gesture.
• AppliCad supplies element (d) — the CAD/estimating engine that turns the model into an annotated, customer-facing quotation/report with planar-section measurements. McKeown is an academic survey with no commercial takeoff/report output; AppliCad is precisely the missing reporting layer.
• Motivation to combine: A PHOSITA building an aerial-roof-estimation product circa 2008 faced a two-stage pipeline problem — (1) reconstruct the 3D roof from imagery (McKeown/SiteCity solves this interactively) and (2) turn the model into a roof-measurement report usable by contractors (AppliCad solves this, but only with manual entry/digitized plans). The well-known pain point was manual data entry and re-digitization between photogrammetry and estimating; feeding the SiteCity-derived 3D model directly into the AppliCad-style estimator eliminates that error-prone step and yields the claimed annotated report. That is a classic, motivation-rich combination of complementary references in the same field of endeavor (roof measurement and construction estimating), with a reasonable expectation of success because both systems model roofs as planar sections and both use standard wire-frame/CAD representations.
• Element (c) (auto cross-view update) is the crux. The strongest PHOSITA argument: once a single shared 3D model is re-projected into each registered image view (as SiteCity and photogrammetric practice do), updating the model and re-projecting into all open views is a routine graphics operation — the "corresponding line in the second view changes automatically" is an inherent, predictable consequence of model-based overlay rendering, not an independent inventive act.

Outcome: The Board never addressed the merits. It denied institution (Apr. 19, 2017) under its § 314(a) discretion, faulting Xactware for serial, second-bite petitions filed after receiving the Board's analysis on IPR2016-00589 and after knowing of McKeown/AppliCad from its own earlier district-court invalidity contentions (see the five-factor General Plastic-style analysis in the Institution Decision and the April 2017 PTAB Litigation Blog write-up). Notably, the denial was procedural, not a merits finding — so McKeown + AppliCad remains the combination a future challenger would most want to see litigated on the merits.

3.3 Hsieh-based combinations — weak

Hsieh + AppliCad was used against sibling patents (IPR2016-00582 et al.) and failed at the threshold because the Board found Hsieh not a provable printed publication; in the D.N.J. trial EagleView further showed Hsieh's recommended approach used only single images, which cuts against the "two views of the same roof" limitation. Not a viable § 103 anchor for the '454's claim 26.

3.4 District-court art (context only)

In Eagle View v. Xactware (D.N.J. 1:15-cv-07025), Xactware's expert (Dr. Mundy) pressed combinations such as Hsieh, McKeown, Verma, and Aerowest (the latter two primarily against sibling patents '840/'737). A jury nevertheless found the asserted claims (including the '454's) valid and willfully infringed, awarding $125M — but that verdict was vacated when the parties settled, so there is no final merits validity adjudication from the district court either. The only merits validity ruling on the '454 claims remains the Board's FWD in IPR2016-00589 (validity upheld as to Avrahami + AppliCad), affirmed by the Federal Circuit.

4. The generic § 103 motivation story (independent of the specific record)

Whichever combination is chosen, the motivation-to-combine narrative a challenger would advance is the same and is well supported:

1. Same field and complementary division of labor. By 2008, aerial-imagery-based roof measurement was an active research area (McKeown's 1996 survey; the Avrahami-type photogrammetric literature) and roof-estimating software (AppliCad) was mature. Each reference alone is incomplete: the photogrammetry literature produces models but no contractor-ready measurement report; the estimating software produces reports but requires manual entry or digitized plans. Combining them yields exactly the claimed pipeline.
2. Known problem with a known solution trajectory. The record pain point — "climbing on roofs / manual takeoffs," later documented in EagleView's own trial evidence as a long-felt need — plus the documented incentive to eliminate re-digitization would push a PHOSITA toward feeding reconstructed 3D roof models directly into CAD/estimating report generators.
3. Standard implementation techniques. Displaying two registered views of the same roof on one screen, overlaying wire frames derived from a single shared 3D model, and re-projecting after each edit are routine photogrammetry/graphics operations; a PHOSITA would regard the cross-view update (element (c)) as inherent in a shared-model architecture.
4. Reasonable expectation of success. Both reference families already represent roofs as planar polygons with measured edges; the combination is a straightforward data-flow integration.

5. Honest assessment of the strongest and weakest ground

• Strongest on the merits (never decided): McKeown + AppliCad against claims 26 and 33. It maps elements (a), (b), and (d) with unusual fidelity and reduces element (c) to an inherent property of shared-model re-projection. The only reason it is not a decided invalidity is that the Board declined to reach it for procedural serial-petition reasons.
• Weakest on the merits (actually decided): Avrahami + AppliCad. The Board considered precisely this ground, with a supporting expert declaration, and rejected it after full briefing — concluding the combination did not render claim 26 obvious and crediting powerful secondary considerations (commercial success of the Twister/Render House products with proven nexus, ~96% top-25-insurer penetration, industry praise, long-felt need). The Federal Circuit affirmed. Any future § 103 challenge must therefore either (i) press McKeown + AppliCad on a record that distinguishes the procedural defect, or (ii) come forward with materially better evidence on the "concurrent auto-update" limitation than Xactware's Schuch declaration — because that limitation, not the general concept of aerial roof modeling, is where the '454's claims have so far survived every merits test.

Bottom line: The technically most cogent § 103 combination is McKeown (SiteCity) in view of AppliCad — an interactive multi-view, multi-plane roof-modeling system married to a roof-estimating/reporting engine — with a clear motivation to automate the photogrammetry-to-estimate pipeline. But the practical record cautions that (1) the analogous Avrahami + AppliCad ground was rejected on the merits and affirmed on appeal, and (2) the decisive limitation in any future challenge will be claim 26's automatic cross-view line update, which the prior photogrammetry art arguably renders only as an inherent or obvious consequence of shared-model rendering, not as an explicit teaching.