Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Downingtown, PA ranks #1,061 worldwide for total patents filed all time, with 3,204 patents from 472 inventors. Leading employers of inventors based in Downingtown, PA include Globus Medical, Kensey Nash, Gravic. That works out to 406.0 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 472 inventors

Rank Inventor Primary Company Patents
1 Mark Weiman Globus Medical 253
2 Mark Adams Globus Medical 154
3 Douglas G. Evans Kensey Nash 119
#4 Paul J. Holenstein Gravic 94
#5 David Urban Comcast 67
#6 Jill Giles-Komar Johnson & Johnson 56
#7 Manfred G. Prammer Halliburton Energy Services 48
#8 Eric L. Canfield Nth Solutions 40
#9 Yoshihisa Shinagawa Siemens Medical Solutions Usa 39
#10 Darin J. Messina Depuy Synthes Products 37
#10 Daniel C. Pevear Venatorx Pharmaceuticals 37
#12 Shaotian Wang Equistar Chemicals, Lp 36
#12 Joshua E. Clapper Graco Children'S Products 36
#14 Dennis A. Holt Smithkline Beecham Limited 33
#14 Michael F. Keane Gyroscope Therapeutics Limited 33
#16 Marian Morys Halliburton Energy Services 32
#16 Rishi Kumar Microsoft 32
#18 Brian Kiernan Interdigital Technology 31
#18 Steven Kristofer Henning The Goodyear Tire & Rubber 31
#20 Thanu Anidharan Rex Medical 29
#21 Mark Rossney Globus Medical 28
#21 James L. Riley University of Pennsylvania 28
#23 Andrew Ma Wonderland Switzerland Ag 27
#24 James Goodrich Carbon 26
#25 Sanjay Mistry Depuy Synthes Products 25
#25 Avrum Cohen Molecular Devices 25
#25 Alec Brusilovsky Interdigital Patent Holdings 25
#28 Robert Chapman Purdue Pharma 24
#29 Donald A. Sheldon 23
#29 William Grecia Qondado 23
#29 Danny Winters Federal-Mogul Powertrain 23
#32 Craig A. Zificsak 89Bio 22
#32 Jay F. Miller Lyondell Chemical Technology 22
#34 Brian C. McLaughlin RTX (Raytheon) 21
#34 Lei Qiao Incyte 21
#36 Walter M. Werner Amp 20
#37 Dihui Hong Molecular Devices 19
#37 Annette Stella Graco Children'S Products 19
#39 Michael P. Perry E.I. Du Pont De Nemours And 18
#39 Svetlana Panicheva Puricore 18
#39 John W. Best Northstar Industries 18
#42 Anthony V. Ruggiero Wonderland Nurserygoods Company Limited 17
#42 James Barkley Comcast 17
#44 Diane E. Gingrich Cephalon 16
#44 Reddeppa Reddy Dandu 89Bio 16
#46 Leonard W. Harvey Whitford 15
#46 Todd Howard Ballinger Johnson Matthey Public Limited 15
#48 Thomas C. Felder E.I. Du Pont De Nemours And 14
#49 Jamie Manos Depuy Synthes Products 13
#49 Raghuram Vudathu JPMorgan Chase 13

Part of Pennsylvania