Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Trochu, CA ranks #9,010 worldwide for total patents filed all time, with 233 patents from 54 inventors. Leading employers of inventors based in Trochu, CA include Gpt Limited, Merck, The Plessey Company Plc.

Showing 1–50 of 54 inventors

Rank Inventor Primary Company Patents
1 Thomas S. Maddern Gpt Limited 24
2 Alison Linda May Merck 19
3 Alexander S. Philip The Plessey Company Plc 14
#4 John A. Jenner Secretary Of State For Defence In Her Britannic Majesty'S Government Of The United Kingdom Of Great Britain And Northern Ireland 12
#4 Brian Andrews Kci Licensing 12
#6 Milan Maric Xerox 11
#7 Andrew Michael Lees IBM 10
#8 Rowland C. Smith 9
#9 Ray Ellis Ultratech 8
#9 Edward Gavin Ciphergen Biosystems 8
#11 Ian Frederick Zimmerman Compact Gtl Plc 7
#11 Vernon B. W. Harvey Ncr 7
#11 Christopher Paul Kenneth Smithies Peripheral Vision 7
#11 Andrew Board Molecular Devices (New Milton) 7
#11 James Keith Haslam Genetix Limited 7
#16 Darren Michael Rose Rosemount Measurement Limited 5
#17 Trevor Ruddock Genetix Limited 4
#17 Michael Bernard Beasley Kci Licensing 4
#19 Alan G. Witts 3
#19 Rodger J. Andrew 3Com 3
#19 Peter John Deacon IBM 3
#19 Mark Jonathan Banfield Illinois Tool Works 3
#19 William John Frederick Morgan Outdoor Edge Cutlery 3
#19 Martin G. Pellatt Secretary Of State For Defence In Her Britannic Majesty'S Government Of The United Kingdom Of Great Britain And Northern Ireland 3
#25 Hugh Malcolm Bourne Aea Technology Plc 2
#25 Roger Thomas Hurrey Rosemount Measurement Limited 2
#25 Paul Zimmerman Zodiac Aerotechnics 2
#25 Raymond G. Weaver 2
#25 Peter Hunt Primetals Technologies Austria Gmbh 2
#25 William Bartlett-Hooker 2
#25 Bruce Dunford 2
#25 George R. Howard Lighthouse Instruments 2
#25 Christopher John Stuckey Normalair-Garrett (Holdings) Limited 2
#25 Bruce Jensen 2
#35 Peter Hibbitt 1
#35 Thomas S Madden Marconi Communications Gmbh 1
#35 Gareth Philip Bristow 1
#35 Nicholas Meaney 1
#35 Stephen R. Boote Membrain 1
#35 Jason Robert Perkins 1
#35 Robert H. Morrison Needle Industries Limited 1
#35 Andrew F. Drummond 1
#35 John T. Glock Secretary Of State For Defence In Her Britannic Majesty'S Government Of The United Kingdom Of Great Britain And Northern Ireland 1
#35 Bryan John Edmondson Flight Refueling Limited 1
#35 Gordon V. Adkins 1
#35 Thomad S Maddern Marconi Uk Intellectual Property 1
#35 Peter V. Creteau The Plessey Company Plc 1
#35 Keith R. Wellman Alcan International Limited 1
#35 David Eggleston 1
#35 Ian J. Skinner Gpt Limited 1