As of February 2026, the Geyser Patent Attorney Directory contains 221 patent practitioners with verified filing records in Combustion Engines (CPC F02). These practitioners have filed a combined 11 patent applications, of which 10 have been granted, a 90.9% allowance rate.
How 221 Combustion Engines practitioners score on PatentFit
Annual patent filings in CPC F02
Firms with the most Combustion Engines patent filings
Search the full Geyser directory to see individual practitioners ranked by PatentFit Score for your specific technology.
Search Combustion Attorneys on GeyserPatent filings in internal combustion engines, gas turbines, and hot-gas propulsion.
View CPC definition ↗As of February 2026, the Geyser Patent Attorney Directory database contains 221 patent practitioners with verified filing records in Combustion Engines (CPC F02). These practitioners have filed a combined 11 patent applications in this technology area, with 10 granted (90.9% allowance rate).
The allowance rate for patent applications classified under Combustion Engines (CPC F02) is 90.9% 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 221 practitioners with proven filing records in Combustion 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.