Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–13 of 13 inventors

Rank Inventor Primary Company Patents
1 Nigel Pearce Promethean Limited 3
2 Stephen Day Pilkington Group Limited 2
3 Joseph Johnson Madison Filter 981 Limited 1
3 Andrzej Tadeusiak Sony 1
3 John Merlin Copplestone-Bruce 1
3 Rosemary Danes Baxenden Chemicals Limited 1
3 Harry John Finn Bae Systems Plc 1
3 Noel Thomas Eggington Baxenden Chemicals Limited 1
3 Craig Meakin Victrex Manufacturing Limited 1
3 Ian James Pettener Websense U.K. Limited 1
3 Philip Owen 1
3 Arnold Jeffrey Fox 1
3 Stephen Soar Hatch Transformers 1