Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Ruislip, GB ranks #7,642 worldwide for total patents filed all time, with 295 patents from 65 inventors. Leading employers of inventors based in Ruislip, GB include Lenovo (Singapore) Pte., American Cyanamid, Aktiebolaget Hassle.

Showing 1–50 of 65 inventors

Rank Inventor Primary Company Patents
1 Dimitrios Karampatsis Lenovo (Singapore) Pte. 97
2 Richard A. Fletton American Cyanamid 18
3 Michael Szelke Aktiebolaget Hassle 17
#4 Chuen Chan Glaxo Group Limited 15
#5 Rodney D. Cambridge Mcafee 11
#6 Barry E. Ayres Glaxo Group Limited 10
#7 Andrew Graham Masters The Procter & Gamble 9
#8 Douglas F Kirkman M.S.C.M. Limited 8
#9 Alastair C. Brodie Glaxo Group Limited 7
#10 Martin Philip Usher Stratos Global Limited 6
#10 Robert Purdham Guinness Brewing Worldwide Limited 6
#12 Keith Wright Rockatek Limited 5
#12 Farokh Marvasti Agere Systems 5
#12 Mohammad Ali Ghatei Imperial Innovations Limited 5
#15 Nicholas A. Pightling Eastman Kodak 4
#16 Ian Philip Steeples Glaxo Group Limited 3
#16 Kenneth Grattan British Technology Group Limited 3
#16 Birju Patel Black & Decker 3
#16 Brian T. Warren Miles Laboratories 3
#16 Anthony G. Gorman Racal Acoustics 3
#21 Timothy L. Gane Glaxo Group Limited 2
#21 Robert E. Gravestock Lucas Industries Public Limited 2
#21 Roger Lawrence Beale 2
#21 Nicholas Leslie Furtek The Gillette Company 2
#21 Neil Stoodley Mars, Incorporated 2
#21 Kui Chui Picker International 2
#21 William Ernest Donald Sleat National Research Development 2
#21 Martin Good 2
#21 Graham James Quintal Etl Systems Limited 2
#21 Stephen R. Heneker 2
#21 Patrick C. Rundle Gec-Marconi 2
#21 Kenneth J. Hart 2
#33 Jane Shepherd 1
#33 Victor Daltrey 1
#33 Malcolm Hatfield Avery Eastman Kodak 1
#33 Tao Xiang Meta 1
#33 Miljan Dojin 1
#33 Kathryn Elizabeth Burn-Thornton Nortel Networks Limited 1
#33 Peter Donald Gaulton Whitaker & 1
#33 Nigel S. Garbett 3Com 1
#33 Joseph Alon Carmel 1
#33 Babak Seddigh Tehran Agarik Sas 1
#33 Vasheharan Kanesarajah Camelot Uk Bidco Limited 1
#33 Abdolreza Cheshmehdoost First Inertia Switch Limited 1
#33 David V. Davies 1
#33 Cecil A. Bate Payen International Limited 1
#33 Sonal Rattan 1
#33 David P. Bashford Westland Plc 1
#33 Peter Lancos 1
#33 Harold T. Brown British Petroleum 1