Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

River Forest, IL ranks #3,548 worldwide for total patents filed all time, with 833 patents from 150 inventors. Leading employers of inventors based in River Forest, IL include Wms Gaming, Standard Oil Company (Indiana), Sears Brands, L.L.C.. That works out to 71.1 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 150 inventors

Rank Inventor Primary Company Patents
1 Michael W. Mastropietro Wms Gaming 72
2 Ellis K. Fields Standard Oil Company (Indiana) 50
3 Tapas Das Gupta 47
#4 Ross Carl Sears Brands, L.L.C. 38
#5 David W. Record Wm. Wrigley Jr. 34
#5 Bruce D. Lund Lund And Company Invention 34
#7 Aaron DeJule Krueger International 31
#8 Vladimir I. Arezina Wms Gaming 27
#9 Stephen A. DiBiase The Lubrizol 24
#10 Joseph A. Armond Electro-Matic Products 19
#11 Thomas Zurek Sap Ag 18
#12 Kenneth G. Phillips Nalco Chemical 16
#13 Charles S. Allen Sloan Valve 15
#13 Bruce Ronsen Pentech Pharmaceuticals 15
#13 James V. Brady, Jr. Earthcomber 15
#16 Robert L. Grossman Ironnet Cybersecurity 13
#17 Bahram Khoobehi Unknown 11
#17 Dennis R. Jarnecke Gas Technology Institute 11
#19 Lane A. Duvel Access Business Group International 10
#20 Russell P. Nockels Warsaw Orthopedic 9
#21 Angelito A. Bernardo Baxter International 8
#21 John Poplett 3Com 8
#21 Michael Kane Kane Graphical 8
#24 John H. O'Leary Fuel Tech 7
#24 Alan Lee Landay Centenary Institute Of Cancer Medicine And Cell Biology 7
#24 Andrew Lisy Groupon 7
#24 Steven Carson Fellowes 7
#28 Crystal Roney Ameritech 6
#28 Noel M. Phillips Ade 6
#28 John Cox Transworld Drilling 6
#28 Thomas Joseph Durbin 6
#28 Randy Bell Sunbeam Products 6
#28 Tapas K. DasGupta University Of Illinois 6
#34 Carl A. Bergetz Peerless Industries 5
#34 Anthony N. Silvetti, Sr. Deroyal Industries 5
#34 Timothy Ames Sloan Valve 5
#34 Carl G. Eilers Zenith Electronics 5
#34 Fady T. Charbel University Of Illinois, Board Of Trustees 5
#34 John E. Fitzgerald Litton Systems 5
#34 Jereme N. Dumm Kimberly-Clark Worldwide 5
#34 Weichien Chow Bunker Ramo 5
#34 Yan Ma 5
#34 Joseph H. Solomon Northwestern University 5
#44 Pamela Konecny 4
#44 Mark Holterman University of Pennsylvania 4
#44 Will Hansmann Uptake Technologies 4
#44 Richard T. Prince Akzo N.V. 4
#44 Bruce C. Beckway Packing Material 4
#44 Kathryn O'Malley 4
#44 James Pivarski Here Global B.V. 4

Part of Illinois