Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–6 of 6 inventors

Rank Inventor Primary Company Patents
1 Charles A. Blum Neurogen 2
2 David Ripin Pfizer 1
2 James E. Doherty Illinois Tool Works 1
2 Frederick W. Stark, III Unknown 1
2 George Maynard Agresearch Limited 1
2 Thomas M. Fredericks Whelen Engineering Company 1

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