Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Wallingford, PA ranks #3,027 worldwide for total patents filed all time, with 1,002 patents from 155 inventors. Leading employers of inventors based in Wallingford, PA include Comcast, Icemos Technology Limited, Depuy Synthes Products.

Showing 1–50 of 155 inventors

Rank Inventor Primary Company Patents
1 Michael Chen Comcast 85
2 Samuel J. Anderson Icemos Technology Limited 56
3 Sean Kerr Depuy Synthes Products 53
#4 Thomas N. Kershaw Fort James 45
#5 John C. Jubin, Jr. Arco Chemical Technology 39
#6 Luan Tao E.I. Du Pont De Nemours And 31
#7 Edward T. Shawl Arco Chemical Technology 30
#8 Ayumu Yokoyama Axalta Coating Systems Ip Co. 29
#9 Michael Chan Kimberly-Clark Worldwide 26
#10 Tobias O. Yellin Ici Americas 25
#11 Piyush R. Patel Cephalon 23
#12 Helen S. M. Lu The Procter & Gamble 22
#13 Jennifer L. Holloway Rovi Guides 21
#13 Dominic D'Andrea Depuy Synthes Products 21
#13 Homer W. Fogle, Jr. Trw Limited 21
#16 George M. Shaw Duke University 20
#16 Yiyi Zhang The Boeing 20
#18 Helen S. M. Lu E.I. Du Pont De Nemours And 16
#19 David M. Schaller Rex Medical 14
#20 James E. Lyons Suntec Co. 13
#20 Ioannis Savidis Drexel University 13
#20 Eugen F. Mesaros Cephalon 13
#23 John A. Ross Raychem Limited 12
#23 Harry Mazurek Atlantic Richfield 12
#25 Ying Wu E.I. Du Pont De Nemours And 11
#26 John Robert Pollard Vertex Pharmaceuticals Incorporated 10
#26 Sharon A. Free Foamex 10
#28 Aizhi Zhao University of Pennsylvania 9
#28 Jian Ping Lai Nutrition & Biosciences Usa 4 9
#30 Rolf Christensen Alfa Laval Corporate Ab 8
#30 James B. Dryfoos RTX (Raytheon) 8
#32 Carl Ingalls Irving Tissue 7
#32 Gary L. Statton Atlantic Richfield 7
#32 Jonathan Rios-Doria Medimmune Limited 7
#32 Yang Shieh Advanced Materials 7
#36 William H. Burgess Kimberly-Clark Worldwide 6
#36 Alexei Nikolaevich Kurchan 6
#36 Walter W. Egee Campbell Soup 6
#36 Frank W. Melpolder Atlantic Richfield 6
#36 Kang Sun Incyte 6
#41 Gennaro J. Maffia Arco Chemical Technology 5
#41 James Huang Rockwell Automation 5
#41 Theodore Ozer The Boeing 5
#41 Pierre Minguet The Boeing 5
#41 Richard Rossow Foamex 5
#41 Richard Tuft Liberty Technology Center 5
#47 Mary D. Sammel University of Pennsylvania 4
#47 Peter Hosler Sun Refining And Marketing 4
#47 Kevin McGough NVIDIA 4
#47 Damini Patel E.I. Du Pont De Nemours And 4

Part of Pennsylvania