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

R. Gregory Pence

LILimitorque: 2 patents #4 of 16Top 25%
Forest, VA: #114 of 238 inventorsTop 50%
Virginia: #12,642 of 34,511 inventorsTop 40%
Overall (All Time): #2,314,515 of 4,157,543Top 60%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4994001 Valve actuator differential worm planetary gear drive Ivan E. Wilkinson, Charles L. Hylton 1991-02-19
4896562 Valve actuator differential worm planetary gear drive Ivan E. Wilkinson, Charles L. Hylton 1990-01-30