Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–4 of 4 inventors

Rank Inventor Primary Company Patents
1 Seth A. Helmich Gray Manufacturing Company 1
1 Dana Barton 1
1 J.D. Dowell 1
1 Barry Barton Smithkline Beeacham P.L.C. 1

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