Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Delaware, CA ranks #41,701 worldwide for total patents filed all time, with 17 patents from 11 inventors. Leading employers of inventors based in Delaware, CA include Sonos, Siemens Canada Limited, NVIDIA.

Showing 1–11 of 11 inventors

Rank Inventor Primary Company Patents
1 Adam Kumpf Sonos 5
2 Carla Rose Heiter-Kelly 2
2 Luigi PALLADINO 2
#4 Ron Bokkers Siemens Canada Limited 1
#4 Daryl Bear 1
#4 Peter Kjeldsen 1
#4 Edward Hofsteede NVIDIA 1
#4 Antonio Giammarco Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft 1
#4 William Louis Tusch 1
#4 Richard John Pierre Tusch 1
#4 David Halyk 1