Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Castleton, GB ranks #17,979 worldwide for total patents filed all time, with 79 patents from 23 inventors. Leading employers of inventors based in Castleton, GB include Light And Sound Design, Er Fluid Developments Limited, Johnson Matthey Public Limited.

Showing 1–23 of 23 inventors

Rank Inventor Primary Company Patents
1 Keith J. Owen Light And Sound Design 15
1 James E. Stangroom Er Fluid Developments Limited 15
3 Allin S. Pratt Johnson Matthey Public Limited 8
#4 Angela Stafford Phytera Incorporated 5
#4 Murree Groom 5
#6 Wendy J. McDonald-Gibson Bayer Healthcare 3
#6 Kenneth D. Boness United Kingdom Atomic Energy Authority 3
#6 Steve Balls Jeyes Group Limited 3
#6 Andrew Codd The Vitec Group Plc 3
#6 Eric A. Feest United Kingdom Atomic Energy Authority 3
#11 Robert J. Marchbanks National Research Development 2
#11 Kenneth M. Revell Bowater Packaging Limited 2
#11 Paul Anthony Raynor Jeyes Group Limited 2
#14 Gerald A. Harwood 1
#14 Helen Rebecca Whay Btg International 1
#14 Kenneth R. Ellis 1
#14 Robert K. Papps Metal Box 1
#14 Charles K. S. Wilmot United Kingdom Atomic Energy Authority 1
#14 Nicholas Paul Gibbons Baxter Travenol Laboratories 1
#14 Andrew Gelder Castrol Limited 1
#14 Thomas M. Valentine United Kingdom Atomic Energy Authority 1
#14 David Sadler-Bridge 1
#14 Simon David Fields British Broadcasting 1