Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Indianapolis, IN ranks #95 worldwide for total patents filed all time, with 27,038 patents from 5,011 inventors. Leading employers of inventors based in Indianapolis, IN include Masco Corporation Of Indiana, Thomson Licensing, Nico.

Showing 1–50 of 5,011 inventors

Rank Inventor Primary Company Patents
1 Anthony G. Spangler Masco Corporation Of Indiana 294
2 Ted J. Freeman 215
3 Donald H. Willis Thomson Licensing 142
#4 David J. Thomas 137
#5 Aaron D. Sippel 133
#6 Joseph L. Mark Nico 130
#7 Walter E. Best Best Lock 119
#8 James F. Blake Array Biopharma 118
#9 Daniel K. Vetters 111
#10 Steven A. Mayer Inno-Pak 110
#11 Joseph A. Swift Xerox 108
#12 John M. Schaus Eli Lilly 101
#13 David L. Ribble Hill-Rom Services 98
#14 Kurt Judson Thomas Delta Faucet 90
#15 Beth Lorsbach Dow Agrosciences 87
#16 Henry U. Bryant Eli Lilly 84
#17 James A. Raszkowski Allison Transmission 78
#18 Matthew W. Martin Forma Therapeutics 74
#18 Gary R. Jacobs Best Lock 74
#20 Charles D. Jones Eli Lilly 72
#20 Jason Scott Sawyer Eli Lilly 72
#20 James R. McCarthy Merrell Dow Pharmaceuticals 72
#20 Grant O. Cook, III Halliburton Energy Services 72
#24 Peter Schenk Roehm Gmbh 71
#25 Timothy R. Bjornson Best Lock 68
#25 John Barrett George Thomson Consumer Electronics 68
#27 Robert N. Falco Cabot Safety Intermediate 67
#28 Paul R. Schmitzer Dow Agrosciences 63
#29 Manju Gupta Dow Agrosciences 62
#30 Jeffrey S. Nissen Eli Lilly 61
#31 Edward C. Rice Rolls-Royce North America 60
#32 Myron Rapkin Pop Test Oncology 59
#33 Rajendra K. Shah Carrier 56
#33 Douglas D. Dierksmeier Rolls-Royce North America 56
#33 Peter J. Schubert Delphi Technologies 56
#33 Thomas Edward Renk Thomson Consumer Electronics 56
#37 Robert W. Heeter 55
#37 Gerald Floyd Smith Eli Lilly 55
#39 Daniel E. Molnar, Jr. Rolls-Royce North America 54
#39 Carl DeAmicis Dow Agrosciences 54
#41 Quinlan Yee Shuck 53
#41 Todd J. Christopher Rca 53
#43 Noormohamed M. Niyaz Dow Agrosciences 52
#44 John Sidney Stewart Thomson Consumer Electronics 51
#44 Celine Kwok Masco Corporation Of Indiana 51
#46 Donald P. Matthews Eli Lilly 50
#47 Joel D. Sawaski Delta Faucet 49
#48 Donald L. Anderson Peerless Industries 48
#49 Michael Rodriguez Eli Lilly 47
#50 Jeffrey A. Walston 46

Part of Indiana