Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Cambridge, MD ranks #10,648 worldwide for total patents filed all time, with 183 patents from 57 inventors. Leading employers of inventors based in Cambridge, MD include Airpax, Maryland Wire Belts, Pioneer (Corteva). That works out to 14.0 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 57 inventors

Rank Inventor Primary Company Patents
1 George H. Messick, Jr. 37
2 George S. Harper Airpax 11
3 Ronald G. Daringer Maryland Wire Belts 9
#4 Jennie Hunter-Cevera Pioneer (Corteva) 8
#4 Matthew Charles O'Connell 8
#6 H. William West Maryland Wire Belts 7
#7 George D. Baker Air Liquide America 6
#8 Chetwyn Jones 5
#8 Donald H. Holdt Cambridge Technologies 5
#8 Michael L. Spangler Cambridge Wire Cloth 5
#8 M. Kamal Akhtar Millennium Inorganic Chemicals 5
#12 Richard A. Loeffler, Sr. Maryland Wire Belts 4
#12 Jed Murph Hurley, Sr. 4
#12 Maxwell Lawrence Keeling 4
#12 Zen Y. Wang Diebold Self-Service Systems, Division Of Diebold, Incorporated 4
#12 James Faulkner Autolus Limited 4
#12 Charles Hennigar 4
#12 Douglas D. Bennett Dentsply Research And Development 4
#19 Donald K. Merchant Airpax 3
#19 Daniel Price Thermo Fisher 3
#21 Mary Katherine Bambrick 2
#21 James Fabiszewski 2
#21 Suketu G. Shah 2
#21 Richard Blake 2
#21 Christopher R. Wills Honda Motor Co. 2
#21 Donald B. Morgan Black & Decker 2
#27 Richard Matyel Blake 1
#27 Sandra M. Pagel 1
#27 Gary Shipe Philips Electronics North America 1
#27 Wesley A. Nolan 1
#27 Gertrude T. Guthrie 1
#27 Warren C. Kendig US Air Force 1
#27 Stella G. Ennals Unknown 1
#27 Granville G. Young, Sr. 1
#27 Eugene F. Dobbs Airpax 1
#27 Nicholas Guo Ying Teo 1
#27 Jihan Eljadidi Triton Systems 1
#27 V. Russell Henry Liquid Air 1
#27 Tyshetta I. Wongus 1
#27 John C. Adkins Maryland Wire Belts 1
#27 Charles W. Tinley North American Philips 1
#27 Arti N. Santhanam University of California 1
#27 Michael Irving STARLING 1
#27 Joseph S. Ruark 1
#27 Frank R. BARCUS, III 1
#27 James S. Sims, Jr. Chemed 1
#27 Timothy E. Denison Georgetown University 1
#27 Gerhardt F. Riedel Smithsonian Institution 1
#27 Philip A. Wozny 1
#27 Steven Edward Suttles 1

Part of Maryland