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 patent citations for US 8,825,454 and the prior art of record.

Let me get the complete front-page citation list and verify the references.

Let me retrieve the remaining citations on the '454 front page.

Prior-Art & § 102 Analysis — U.S. Patent 8,825,454 B2

Scope note / limitations first. I could not obtain a live record from USPTO Patent Center or the Assignment/PTAB APIs in this session (my searches returned no usable USPTO-database hit for that number). The citation data below is taken from the patent's own front page as reproduced in two authoritative, verifiable sources, and one secondary index:

• The D.N.J. complaint, Eagle View Technologies, Inc. v. Xactware Solutions, Inc., 1:15-cv-07025, filed 2015-09-23, which reproduces the full '454 front page (eagleview.com PDF).
• PTAB IPR2017-00027, Exhibit 1001 — a copy of the printed patent itself (Docket Alarm).
• FreePatentsOnline citation index for US8825454 (foreign documents + non-patent literature).

Two explicit gaps I will not paper over: (1) my retrieved copy of the U.S.-patent citation list truncates at US 7,991,226 (8/2011) — the tail of column 1/column 2 of the "References Cited" block is not in my source, so the list below is the verified portion, not necessarily the complete list; (2) I did not verify the exact reel/frame or examiner's "considered" initials. Treat any reference not shown here as unverified, not absent.

Also, per the operating rules, I interpret 8825454 = 8,825,454 literally; nothing in the search results required correcting that number.

1. What the claims actually require (needed before you can talk about anticipation)

The only independent claims pleaded/instituted against this patent are claim 26 (computer-implemented method) and claim 33 (second independent claim), with dependents 27–28 and 34–36 (IPR2016-00589 instituted on 26–28 and 34–36; claim 33 was challenged but not instituted). Claim 26, verbatim from the IPR2016-00589 Final Written Decision, requires, in substance:

Anticipation under 35 U.S.C. § 102 requires a single reference disclosing all of A–G arranged as claimed. That is the yardstick I apply below. (Nothing in the file suggests any cited reference was applied as a § 102 anticipation; these were all § 103 "secondary references" or background art.)

2. U.S. patent citations of record on the '454 front page

Dates below are the issue dates printed on the front page (i.e., the reference's patent date). Descriptions are brief and, where I am not certain of a reference's subject matter, marked (subject inferred from title/assignee).

U.S. Patent Application Publications on the '454 front page include at least US 2004/0220906 A1 ("Systems and methods for location-based real estate service," Gargi et al., 2004-11-04) — cited, per the Google Patents record — plus the standard family citations (Pershing/Pictometry applications).

Foreign patent documents of record

(From the FPO citation index; flag: the items marked ‡ published after the 31 Oct 2008 priority date and therefore are, at best, § 102(e)-type art only if the claims lose the priority date — otherwise they are not § 102 prior art at all)

Non-patent literature of record

• Noronha et al., "Detection and Modeling of Buildings from Multiple Aerial Images," Institute for Robotics and Intelligent Systems, Univ. of Southern California, Nov. 27, 2001 (later IEEE TPAMI 23(5):501–518, 2001). Confirmed with an asterisk on the '454 front page. This is the single most on-point cited reference — it models buildings from multiple aerial images.
• Autodesk ImageModeler product documentation (retrieved Sep. 30, 2008).
• German AeroDach® website archive (2004) and Aerowest website archive (2006) + "AeroDach Online Roof Evaluation" data-format document (2002).
• Pictometry.com FAQ (retrieved Aug. 1, 2005).
• Various Pershing/Ciarcia/Thornberry co-pending applications and Office Actions (cited as co-pending/related work in the family, not as prior art).

3. § 102 anticipation assessment — reference by reference grouping

Honest bottom line up front: not one cited reference anticipates any claim of the '454 under § 102. They fail structurally, not marginally:

Group I — Generic graphics / image-processing / measurement (items 1–13, 15–26, 29–37, 39–42). These disclose, at most, individual elements — an image on a screen (A), a line drawing (C), interactive editing (E), or 3D model generation (C/D) — but none discloses two different-angle aerial views of the same roof on a single display (A+B) together with corresponding overlaid line drawings (C+D) and the automatic mirroring of a user's line edit from one view into the other (E+F). § 102 fails on the "arranged as in the claim" requirement.

Group II — Multi-view aerial imagery (Schultz US 7,424,133; US 7,787,659; US 7,873,238; US 7,991,226; Florance US 7,487,114). These are the closest cited U.S. patents on elements A and B (multiple registered views of a structure). But they are imagery-management patents (oblique + nadir mosaics, geo-referencing, color/reprojection). They do not disclose an editable line drawing overlay that corresponds feature-for-feature across views (C+D), the user-edit-in-one-view → auto-change-in-the-other coupling (E+F), or the annotated slope/area/edge-length report (G). No anticipation.

Group III — Interactive 3D modeling (Verma US 7,728,833; Freeman US 6,496,184; Chen US 7,133,551; Mulet-Parada US 7,519,206; Kishikawa US 7,343,268; EP 1010966/Aerowest; WO 2006/040775). These get closest on C, D, E (you can draw a wire frame on a computer model and edit it). Verma in particular is the reference Xactware's D.N.J. expert used. But their models are generic CAD/3D-object models, not two aerial images of the same roof displayed on one display with corresponding line-drawing overlays, and none teaches the cross-view auto-update of a corresponding line (F). Best case for a challenger: a § 103 combination — never § 102.

Group IV — Roof-estimating / report generation (Attra US 7,006,977; Setterholm US 7,233,691; Moore US 7,373,303; Woro US 7,500,391; WO 2000/029806). These touch element G (roof measurement/estimate output) but have no multi-image concurrent-display UI at all. WO 2000/029806 ("Method for measuring the surfaces of a house roof") is the most roof-specific of the cited foreign art but discloses measurement, not the claimed dual-view line-drawing-with-auto-mirroring interface. No anticipation.

Group V — Non-patent literature (Noronha; AeroDach/Aerowest). Noronha (2001) is the strongest cited item overall because it models buildings from multiple aerial images — it attacks A/B and part of C/D. But it is a photogrammetric reconstruction paper; it does not disclose an interactive two-overlay, edit-one-view-and-the-other-changes-automatically UI (E+F) or the annotated estimate report (G). Again: a § 103 candidate, not a § 102 anticipator.

4. The references that actually matter (post-grant record)

The front-page citations are not where the '454 was seriously attacked. The real prior-art universe for this patent is the art Xactware asserted, which is § 103 material and is documented in the IPR/litigation record:

These are the same art classes as the front-page citations, and the takeaway is identical: the cited/asserted art supports at most § 103 obviousness arguments on the modeling elements (C/D/E), and it has twice failed to reach or to carry the decisive claim-limitation F (automatic cross-view line update) and G (annotated estimate report).

5. Direct answer to the "which claims does it anticipate" question

• No cited reference anticipates claim 26, claim 33, or any dependent claim 27–28 / 34–36. The nearest single references (Noronha 2001; Schultz US 7,424,133; Verma US 7,728,833; Mulet-Parada US 7,519,206; WO 2000/029806) each miss at least elements B (second view of the same roof on the same display) and/or F (automatic corresponding-line change) and/or G (annotated slope/area/edge-length report).
• If any § 102 theory is to be run, it must be built on a single reference that itself discloses the concurrent dual-view line-drawing with mirrored editing — and nothing in the file, the IPR record, or the litigation record is such a reference.
• Caveat on claim coverage: my source truncates the U.S. citation list at US 7,991,226, so I cannot rule out that the un-retrieved tail (post-7,991,226 entries) contains an additional, more on-point citation — though given the pattern and the fact that prosecution ended in allowance and the IPR ended in affirmance, that is unlikely to change the § 102 conclusion.

6. Bottom line for a practitioner

1. Most relevant prior art of record: Noronha et al. (2001) (multi-aerial-image building modeling) — the strongest single reference; then the Pictometry/Schultz multi-view imagery family (US 7,424,133 / 7,787,659 / 7,873,238 / 7,991,226; Florance US 7,487,114) for the dual-view element; then the interactive-3D-modeling references (Verma US 7,728,833; Freeman US 6,496,184; Mulet-Parada US 7,519,206; Kishikawa US 7,343,268; EP 1010966/Aerowest) for the wireframe elements.
2. No § 102 anticipation exists on the record as retrieved. These are all § 103 "secondary" references. The claims survived an actual § 103 merits test (IPR2016-00589 FWD 2017-08-14, affirmed in CAFC 18-1053) that used materially the same art classes.
3. Where to look next if you need a real invalidity theory: the un-retrieved tail of the '454 front-page citation list (pre-2008 references after US 7,991,226) and the McKeown (SiteCity) + Applicad combination — the one § 103 ground the Board never reached on the merits (denied institution in IPR2017-00027), and thus the only high-value, un-adjudicated § 103 surface. § 102 alone is not going to take this patent down.

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.