As of March 2026, the Geyser Patent Attorney Directory contains 246 patent practitioners with verified filing records in Machines & Engines (CPC F01). These practitioners have filed a combined 11 patent applications, of which 9 have been granted, a 81.8% allowance rate.
How 246 Machines & Engines practitioners score on PatentFit
Annual patent filings in CPC F01
Firms with the most Machines & Engines patent filings
Search the full Geyser directory to see individual practitioners ranked by PatentFit Score for your specific technology.
Search Engines Attorneys on GeyserAttorneys with filings in combustion engines, turbines, and rotary-piston machines.
View CPC definition ↗As of March 2026, the Geyser Patent Attorney Directory database contains 246 patent practitioners with verified filing records in Machines & Engines (CPC F01). These practitioners have filed a combined 11 patent applications in this technology area, with 9 granted (81.8% allowance rate).
The allowance rate for patent applications classified under Machines & Engines (CPC F01) is 81.8% 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 246 practitioners with proven filing records in Machines & Engines. 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.