Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Newark, DE ranks #407 worldwide for total patents filed all time, with 7,802 patents from 1,550 inventors. Leading employers of inventors based in Newark, DE include Rpc, Lanxide Technology, AMD. That works out to 255.0 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 1,550 inventors

Rank Inventor Primary Company Patents
1 Eustathios Vassiliou Rpc 120
2 Marc S. Newkirk Lanxide Technology 95
3 Arvind Halliyal AMD 82
#4 Thomas Martin Stevenson E.I. Du Pont De Nemours And 81
#5 Garrett Russell Metrologic Instruments 80
#6 Albert L. Lu Corteva Agriscience 77
#7 Paul H. Schipper ExxonMobil 71
#8 David B. James Rodel Holdings 70
#9 Neville Everton Drysdale E.I. Du Pont De Nemours And 58
#9 Christopher J. Conway Thermal Dynamics 58
#11 Hajime Sakai E.I. Du Pont De Nemours And 51
#11 Brian C. Auman E.I. Du Pont De Nemours And 51
#13 Donald Edward Putzig E.I. Du Pont De Nemours And 47
#14 Wayne M. Gibbons Elsicon 44
#14 John V. H. Roberts Rodel Holdings 44
#16 Christopher R. Kennedy Lanxide Technology 43
#17 Omolayo O. Famodu E.I. Du Pont De Nemours And 42
#17 Russell J. Low Varian Semiconductor Equipment Associates 42
#19 Harry J. Spinelli E.I. Du Pont De Nemours And 39
#20 James F. H. Wong E.I. Du Pont De Nemours And 38
#20 Karlene H. Butler E.I. Du Pont De Nemours And 38
#22 Richard C. Ebersole E.I. Du Pont De Nemours And 37
#23 Sourav Kumar Sengupta E.I. Du Pont De Nemours And 36
#24 Michael Hollins Silverbrook Research Pty 35
#25 Dennis Flint Butamax Advanced Biofuels 34
#25 Charles W. Stewart E.I. Du Pont De Nemours And 34
#25 Robert James Pasteris E.I. Du Pont De Nemours And 34
#28 George C. Jacob Rohm And Haas Electronic Materials Cmp Holdings 33
#28 Habib Hichri IBM 33
#30 Ralph Newton Miller E.I. Du Pont De Nemours And 32
#30 Huey Shen Wu W.L. Gore & Associates Gmbh 32
#30 John J. V. Duncia E.I. Du Pont De Nemours And 32
#33 Edgar S. Sanders, Jr. L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude 31
#34 Robert L. Sassa W.L. Gore & Associates Gmbh 30
#35 Lap-Tak Andrew Cheng E.I. Du Pont De Nemours And 28
#35 Tuyen T. Nguyen Hercules 28
#37 Allen M. Barnett Astropower 27
#37 Steffen Renisch Koniniklijke Philips N.V. 27
#37 Kamlesh Kumar Bhatia E.I. Du Pont De Nemours And 27
#37 Joseph J. Zaher Butamax Advanced Biofuels 27
#41 Howard E. Simmons, III E.I. Du Pont De Nemours And 26
#41 Morris P. Rorer E.I. Du Pont De Nemours And 26
#41 Gonzalo R. Arce University Of Delaware 26
#44 Junjie Jeffrey Sang 25
#44 William D. Dunfee Siemens Healthcare Diagnostics 25
#44 Howard Matrick E.I. Du Pont De Nemours And 25
#44 Keith Russell Zeneca Limited 25
#48 James Martin Blackberry Limited 24
#48 William H. Tuminello E.I. Du Pont De Nemours And 24
#50 James Arthur Trainham E.I. Du Pont De Nemours And 23

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