Geyser Patent Attorney Directory cross-references 18,229 patent practitioners with 44,579 USPTO filings across 113 CPC technology classifications. We show you who has actually filed patents in your exact technology area, not who markets themselves as experts.
Start by finding your technology area below.
Every practitioner in our database is indexed by the CPC codes of patents they've actually filed. Select a technology area to see the expertise landscape: how many specialists exist, what allowance rates look like, and how PatentFit Scores distribute.
Patent practitioners are registered with the USPTO, a federal agency with nationwide jurisdiction. A practitioner in Texas can file patents for an inventor in Massachusetts with identical authority. What determines patent success is technology-specific: depth of filing history in the relevant CPC classification, allowance rate in that area, and familiarity with the art units that examine those applications.
Practitioners with 50+ filings in a CPC class have 2-3x higher allowance rates than generalists entering the same area.
Each technology area is examined by specific USPTO art units. Practitioners who regularly appear before the same examiners build procedural advantages.
Patent law and examiner expectations evolve. A practitioner's recent filings (last 3 years) are weighted heavily in PatentFit scoring.
Search 18,229 practitioners by technology. See who has actually filed patents in your exact area.
Free to use · 18,229 practitioners indexed