As of February 2026, the Geyser Patent Attorney Directory contains 4113 patent practitioners with verified filing records in Technical Subjects (Legacy USPC) (CPC Y10). These practitioners have filed a combined 437 patent applications, of which 252 have been granted, a 57.7% allowance rate. Of these, 58 practitioners have PatentFit Scores rated “Strong” or “Exceptional.”
How 4113 Technical Subjects (Legacy USPC) practitioners score on PatentFit
58 practitioners have “Strong” or “Exceptional” PatentFit Scores in Technical Subjects (Legacy USPC), meaning deep, recent filing history in CPC Y10.
Find your top matches on GeyserAnnual patent filings in CPC Y10
Firms with the most Technical Subjects (Legacy USPC) patent filings
Search the full Geyser directory to see individual practitioners ranked by PatentFit Score for your specific technology.
Search Legacy Tech Attorneys on GeyserCross-reference classifications from the legacy U.S. Patent Classification system.
View CPC definition ↗As of February 2026, the Geyser Patent Attorney Directory database contains 4113 patent practitioners with verified filing records in Technical Subjects (Legacy USPC) (CPC Y10). These practitioners have filed a combined 437 patent applications in this technology area, with 252 granted (57.7% allowance rate).
The allowance rate for patent applications classified under Technical Subjects (Legacy USPC) (CPC Y10) is 57.7% in our database. The USPTO-wide average is approximately 61.6%. Practitioners with high PatentFit Scores in this area significantly outperform this average.
The Geyser Patent Attorney Directory analyzes 4113 practitioners with proven filing records in Technical Subjects (Legacy USPC). Of these, 58 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.