Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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William Q. Walker — 2 Patents

NASA: 2 patents #178 of 1,252Top 15%
Houston, TX: #8,651 of 21,073 inventorsTop 45%
Texas: #52,441 of 125,132 inventorsTop 45%
Overall (All Time): #1,702,009 of 4,157,543Top 45%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12253484 Large format-fractional thermal runaway calorimeter Steven L. Rickman, John J. Darst, Damien T. Calderon, Richard A. Hagen, Ryan P. Brown +3 more 2025-03-18
11201358 Systems and methods for measuring a heat response of a battery cell in thermal runaway Eric C Dimpault-Darcy, John J. Darst, Steven L. Rickman, Natalie N. Anderson, Christiaan Khurana +3 more 2021-12-14