As of February 2026, the Geyser Patent Attorney Directory contains 87 patent practitioners with verified filing records in Doors, Windows & Shutters (CPC E06). These practitioners have filed a combined 8 patent applications, of which 7 have been granted, a 87.5% allowance rate.
How 87 Doors, Windows & Shutters practitioners score on PatentFit
Annual patent filings in CPC E06
Firms with the most Doors, Windows & Shutters patent filings
Search the full Geyser directory to see individual practitioners ranked by PatentFit Score for your specific technology.
Search Doors & Windows Attorneys on GeyserAttorneys specializing in door systems, window technology, and building envelope components.
View CPC definition ↗As of February 2026, the Geyser Patent Attorney Directory database contains 87 patent practitioners with verified filing records in Doors, Windows & Shutters (CPC E06). These practitioners have filed a combined 8 patent applications in this technology area, with 7 granted (87.5% allowance rate).
The allowance rate for patent applications classified under Doors, Windows & Shutters (CPC E06) is 87.5% in our database. The USPTO-wide average is approximately 61.6%. This above-average rate suggests favorable prosecution conditions in this technology area.
The Geyser Patent Attorney Directory analyzes 87 practitioners with proven filing records in Doors, Windows & Shutters. Of these, 0 have PatentFit Scores rated "Strong" or "Exceptional," indicating deep specialization. You can search for your specific technology match on our directory.
PatentFit is a composite score (0-100) measuring how well a practitioner's actual filing record aligns with a specific technology area. It combines Specialization Depth (35%), Allowance Rate (25%), Filing Recency (20%), and Experience (20%). Full methodology at https://patentgeyser.com/methodology.
No. Patent practitioners are registered with the USPTO, a federal agency with nationwide jurisdiction. A patent attorney in any U.S. state can file and prosecute patent applications for inventors located anywhere. What matters is their proven expertise in your specific technology area.