Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–3 of 3 inventors

Rank Inventor Primary Company Patents
1 Donald P. Wallach, deceased The Upjohn 2
2 Tunis J. Willemstyn Motan Holding Gmbh 1
2 Joseph Patrick Martin, Jr. Pharmacia & Upjohn Company 1

Part of Michigan