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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Waupaca, WI ranks #9,911 worldwide for total patents filed in 2021, with 8 patents from 7 inventors. Leading employers of inventors based in Waupaca, WI include Illinois Tool Works, Brunswick, Reynolds Consumer Products. That works out to 1.3 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–7 of 7 inventors

Rank Inventor Primary Company Patents
1 James M. Walker Illinois Tool Works 2
2 Thomas S. Kirchhoff Brunswick 1
2 Jeffrey Jakubowski 1
2 Zachary Erndt Illinois Tool Works 1
2 Gregory L. Petkovsek Reynolds Consumer Products 1
2 Michael Donald Sperl Kimberly-Clark Worldwide 1
2 Doug Shefelbine Unknown 1

Part of Wisconsin