Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Dung Ma — 2 Patents

PRPro-Dex: 2 patents #6 of 17Top 40%
Anaheim, CA: #477 of 1,337 inventorsTop 40%
California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #1,929,727 of 4,157,543Top 50%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10206731 Torque-limiting screwdrivers Richard Kust, John J. Desrosiers, Francis James Steinmetz, Siddharth Desai 2019-02-19
9265551 Torque-limiting screwdrivers Richard Kust, John J. Desrosiers, Francis James Steinmetz, Siddharth Desai 2016-02-23