Invalidity dossier
US 8145578
Aerial roof estimation system and method
Current assignee: EagleView Technologies Inc
Added 9/23/2026, 11:41:18 PM
Active provider: DeepSeek · deepseek-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview — US8145578B2
Title: Aerial roof estimation system and method
Patent number / application: US8145578B2; Application US12/148,439
Inventors: Chris Pershing, Dave Carlson
Assignee: Original assignee recorded as "Eagel View Tech Inc" (later reassigned to Eagle View Technologies, Inc.); current assignee listed as EagleView Technologies Inc.
Key dates: Prior art date 2007-04-17 (priority); filing date 2008-04-17; publication date 2012-03-27; legal status listed as Active with adjusted expiration 2029-12-02. Classifications include G06Q30/02, G06Q30/0283, G06Q40/08 (insurance), and G06Q50/16 (real estate).
Purpose: The patent addresses a practical problem in construction estimating: producing timely written roofing estimates normally requires a contractor to physically visit a building to determine roof style, take measurements, and inspect access and cleanup conditions. Travel time, commuting cost, weather, and traffic can make this prohibitive, especially for small contractors or distant jobs. The stated need is a system that lets a roof be measured quickly and easily without requiring the estimator to travel to the building, so the measurements can support an estimate to repair or replace the roof or install equipment on it.
Plain-language scope (from the supplied excerpt): The system uses a roof estimating software program together with a location-linked image file database. A user inputs the building's physical address or location information; the program then presents aerial images of the roof sections at that address. Aerial images may come from an overhead aircraft, a balloon, or a satellite. Image analysis and calibration are then performed either manually or via software, yielding roof measurements usable for an estimate.
Not established by this excerpt: The full claim set and their exact scope; the complete detailed description; the identity and content of prior-art references; and any findings about validity, enforceability, or litigation. The excerpt also does not establish that the listed classifications describe the claims, and it truncates the description mid-sentence ("either manually or via a software pr…").
Source: https://patents.google.com/patent/[US8145578](/patent/US8145578)/en
Generated 10/1/2026, 9:32:29 PM
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Litigation summary
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PTAB challenges
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Assignment history
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Prior art
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Obviousness
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Extensions
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Derivative works
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