As of March 2026, the Geyser Patent Attorney Directory contains 105 patent practitioners with verified filing records in Water Supply & Sewerage (CPC E03). These practitioners have filed a combined 5 patent applications, of which 3 have been granted, a 60% allowance rate.
How 105 Water Supply & Sewerage practitioners score on PatentFit
Annual patent filings in CPC E03
Firms with the most Water Supply & Sewerage patent filings
Search the full Geyser directory to see individual practitioners ranked by PatentFit Score for your specific technology.
Search Water Systems Attorneys on GeyserPatent expertise in plumbing, water distribution, and sewage systems.
View CPC definition ↗As of March 2026, the Geyser Patent Attorney Directory database contains 105 patent practitioners with verified filing records in Water Supply & Sewerage (CPC E03). These practitioners have filed a combined 5 patent applications in this technology area, with 3 granted (60% allowance rate).
The allowance rate for patent applications classified under Water Supply & Sewerage (CPC E03) is 60% 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 105 practitioners with proven filing records in Water Supply & Sewerage. 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.