Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
RP

R. Gregory Pence — 2 Patents

LILimitorque: 2 patents #4 of 16Top 25%
Forest, VA: #114 of 238 inventorsTop 50%
Virginia: #12,799 of 34,511 inventorsTop 40%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
R. Gregory Pence has been granted 2 US patents while listed as an inventor at Limitorque. The first was granted in 1990 and the most recent in February 1991. R. Gregory Pence ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list R. Gregory Pence in Forest, VA, US.

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