Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Rockford, IL ranks #1,034 worldwide for total patents filed in 2021, with 141 patents from 90 inventors. Leading employers of inventors based in Rockford, IL include Trion Industries, Hamilton Sundstrand, B/E Aerospace. That works out to 0.9 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 90 inventors

Rank Inventor Primary Company Patents
1 Thomas O. Nagel Trion Industries 11
2 Eric Karlen Hamilton Sundstrand 7
3 William Louis Wentland Hamilton Sundstrand 6
#4 Todd A. Spierling Hamilton Sundstrand 4
#4 William David Gavin 4
#6 Thao Hoang B/E Aerospace 3
#6 Jae Kwang Lee Samsung 3
#6 Andreas C. Koenig Hamilton Sundstrand 3
#6 Paul M. Fowler Sage Products 3
#6 Bruce Lee Coulter Evoqua Water Technologies 3
#6 Matthew Allen Slayter Hamilton Sundstrand 3
#12 Andrew P. Grosskopf Hamilton Sundstrand 2
#12 Jimmy Peralta Hamilton Sundstrand 2
#12 Timothy Arn Goodrich Hamilton Sundstrand 2
#12 Joshua C. Swenson Hamilton Sundstrand 2
#12 Michael Allen AT&T 2
#12 Jordan K. Vanevenhoven Hamilton Sundstrand 2
#12 Sean D. Bradshaw RTX (Raytheon) 2
#12 Zachary Allen Ray Le Duc Hamilton Sundstrand 2
#12 John N. Buzzard Hamilton Sundstrand 2
#12 Joshua D. West Estwing Manufacturing Company 2
#12 Hebri Vijayendra Nayak Hamilton Sundstrand 2
#12 Gregory I. Rozman Hamilton Sundstrand 2
#24 Timothy J. Franckowiak Hamilton Sundstrand 1
#24 Matthew O'Sullivan Senior Engineering Investments Ag 1
#24 Joseph Lake Unknown 1
#24 Steven E. Jackson Varec 1
#24 Rodney Lake Eight Plus Ventures 1
#24 Brian K. Lawver Woodward 1
#24 Luke Cavil Hamilton Sundstrand 1
#24 Matthew Donovan Gray Danfoss Power Electronics A/S 1
#24 Ryan W. Schmid Hamilton Sundstrand 1
#24 Joseph M. Bielefeldt Hamilton Sundstrand 1
#24 Michael F. Buckley Revcor 1
#24 Stanley C. Valiulis Southern Imperial 1
#24 Lee Qian Hamilton Sundstrand 1
#24 Michael George Schneider Sunstrand 1
#24 Massimiliano MORUZZI Autodesk 1
#24 Nathan D. Kohnle Hamilton Sundstrand 1
#24 Clifford D. Westerlund GE 1
#24 Iwona Kuc 1
#24 Erika M. Danckers Hamilton Sundstrand 1
#24 Surbhi Desai Pierce Biotechnology 1
#24 Kathleen Bartel 1
#24 Jordan Loren Loos Woodward 1
#24 Kevin Donald Kilroy Hamilton Sundstrand 1
#24 Kelly Ann Pickett Fasteners For Retail 1
#24 Skyler Ripplinger Hamilton Sundstrand 1
#24 Willy J. Goellner Advanced Machine & Engineering 1
#24 Dmitriy Baryshnikov Woodward 1

Part of Illinois