Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Annapolis, MD ranks #1,403 worldwide for total patents filed all time, with 2,385 patents from 661 inventors. Leading employers of inventors based in Annapolis, MD include Air Products And Chemicals, Cardioxyl Pharmaceuticals, Advancis Pharmaceutical. That works out to 58.4 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 661 inventors

Rank Inventor Primary Company Patents
1 Donald C. Erickson Air Products And Chemicals 74
2 Vincent Jacob Kalish Cardioxyl Pharmaceuticals 68
3 Donald Treacy Advancis Pharmaceutical 36
#4 Quirino Balzano Motorola 35
#4 John C. Earle Propeller 35
#6 Graham P. Eatwell Noise Cancellation Technologies 32
#7 Jason Adam Denise Google 30
#7 Kevin J. Powell Symbol Technologies 30
#9 Michael Schiller Fingermatrix 29
#10 Stephen B. Alexander Ciena 28
#11 Charles Hart Isaacs Salesforce 25
#12 Herbert Estrada Cameron International 24
#13 Anastasios P. Goutzoulis Westinghouse Electric 22
#14 Paul Reed Smith Paul Reed Smith Guitars, Limited Partnership 21
#15 James M. Williams Linear Technology Holding 20
#15 Douglas A. Newberg Nl Technologies 20
#17 John A. Dorr Xecutek 19
#18 Ronald P. Reitz US Air Force 17
#19 Jeremy Eckman Ionic Security 16
#20 Steven Mitchell University of Colorado 15
#20 Jacqueline H. Hines Sensanna Incorporated 15
#22 Sarah W. Phelps Wells Fargo Bank, N.A. 14
#22 Robert F. Supcoe US Air Force 14
#22 Daniel Hronek Telecommunication Systems 14
#22 William E. Bentley University Of Maryland, College Park 14
#26 Jeffrey Howard Ionic Security 13
#26 Steve W. Chaddick Ciena 13
#26 Erik Wallace Telecommunication Systems 13
#29 Mark Colton Carrier 12
#29 Edwin W. Albers Thiele Kaolin 12
#29 Gus F. Plangetis US Air Force 12
#29 Michael William URBANSKI Heavy Hammer 12
#29 Oliver Birch IBM 12
#34 Jonathan Thomas Burns Ionic Security 11
#34 Michael E. McCormick Murtech 11
#34 Brian Emery Ray Link Labs 11
#34 Henry Lee Vlsi Technology 11
#38 Charles Kleinrichert Automatic Bar Controls 10
#38 William E. Schneider US Air Force 10
#38 Kevin Delaney Rockwell Collins 10
#38 Joseph Pohutsky Telecommunication Systems 10
#38 Charles David Dent Heavy Hammer 10
#38 James Gary Cooper, Jr. Rockwell Collins 10
#38 Shailesh Potnis Fedders 10
#38 James Urban Deeproot Green Infrastruture 10
#38 Kenneth E. Wood Amtx 10
#38 Johanna Wilson Telecommunication Systems 10
#38 Robert L. Donaldson IBM 10
#38 Zachary Leuschner RTX (Raytheon) 10
#50 James Brian Caldwell Panavision International 9

Part of Maryland