Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Calmar, IA ranks #30,108 worldwide for total patents filed all time, with 32 patents from 6 inventors. Leading employers of inventors based in Calmar, IA include Nucor, Trimark, Infastech Intellectual Properties Pte. That works out to 28.4 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–6 of 6 inventors

Rank Inventor Primary Company Patents
1 Richard W. Lukes Nucor 21
2 Dave Magner Trimark 7
3 Allen J. Massman 1
3 Alan SHINDELAR Infastech Intellectual Properties Pte 1
3 Randy LUZUM Infastech Intellectual Properties Pte 1
3 Ken Schissel 1

Part of Iowa