Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Brookfield, IL ranks #5,831 worldwide for total patents filed in 2021, with 17 patents from 9 inventors. Leading employers of inventors based in Brookfield, IL include Proxense, Sram, IBM. That works out to 0.9 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–9 of 9 inventors

Rank Inventor Primary Company Patents
1 Fred S. Hirt Proxense 4
2 Paul Feuerstein Sram 3
3 Alex Marchenko IBM 2
3 Brett Fugate 2
3 Douglas Neal Cogan Pti Marketing Technologies 2
#6 Ezekiel Johnson Crown Packaging Technology 1
#6 Kent E. Wardle Terrapower 1
#6 James E. Huebler Institute Of Gas Technology 1
#6 Mitchell J. Kowalczyk Uop 1

Part of Illinois