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USPTO Patent Rankings Data through Dec 31, 2025
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Ivan E. Wilkinson — 3 Patents

LILimitorque: 3 patents #1 of 16Top 7%
Lynchburg, VA: #143 of 554 inventorsTop 30%
Virginia: #9,600 of 34,511 inventorsTop 30%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Ivan E. Wilkinson has been granted 3 US patents while listed as an inventor at Limitorque. The first was granted in 1989 and the most recent in February 1991. Ivan E. Wilkinson ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Ivan E. Wilkinson in Lynchburg, VA, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4994001 Valve actuator differential worm planetary gear drive Charles L. Hylton, R. Gregory Pence 1991-02-19
4896562 Valve actuator differential worm planetary gear drive Charles L. Hylton, R. Gregory Pence 1990-01-30
4839475 Modular switch assembly having wiping contacts Robert Auxier 1989-06-13