Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
RC

Randy A. Chappel

TITexas Instruments: 3 patents #4,047 of 12,488Top 35%
Quinlan, TX: #4 of 21 inventorsTop 20%
Texas: #40,946 of 125,132 inventorsTop 35%
Overall (All Time): #1,458,179 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10812034 Dual-mode filtering actuator driver apparatus, systems and methods Michael John Shay, Jialei Xu 2020-10-20
10418961 Dual-mode filtering actuator driver apparatus, systems and methods Michael John Shay, Jialei Xu 2019-09-17
9887680 Dual-mode filtering actuator driver apparatus, systems and methods Michael John Shay, Jialei Xu 2018-02-06