As of March 2026, the Geyser Patent Attorney Directory contains 620 patent practitioners with verified filing records in Earth Drilling & Mining (CPC E21). These practitioners have filed a combined 68 patent applications, of which 47 have been granted, a 69.1% allowance rate. Of these, 9 practitioners have PatentFit Scores rated “Strong” or “Exceptional.”
How 620 Earth Drilling & Mining practitioners score on PatentFit
9 practitioners have “Strong” or “Exceptional” PatentFit Scores in Earth Drilling & Mining, meaning deep, recent filing history in CPC E21.
Find your top matches on GeyserAnnual patent filings in CPC E21
Firms with the most Earth Drilling & Mining patent filings
Search the full Geyser directory to see individual practitioners ranked by PatentFit Score for your specific technology.
Search Mining Attorneys on GeyserPatent expertise in drilling technology, mining equipment, and underground construction.
View CPC definition ↗As of March 2026, the Geyser Patent Attorney Directory database contains 620 patent practitioners with verified filing records in Earth Drilling & Mining (CPC E21). These practitioners have filed a combined 68 patent applications in this technology area, with 47 granted (69.1% allowance rate).
The allowance rate for patent applications classified under Earth Drilling & Mining (CPC E21) is 69.1% 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 620 practitioners with proven filing records in Earth Drilling & Mining. Of these, 9 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.