Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–4 of 4 inventors

Rank Inventor Primary Company Patents
1 Michael P. Zawistoski Pfizer 2
2 Arthur Roger Guillemette Guill Tool & Engineering Co. 1
2 Richard Guillemette Guill Tool & Engineering Co. 1
2 A Roger Guillemette Guill Tool & Engineering Co. 1

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