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

William Lewis Epperson — 3 Patents

GEGentex: 2 patents #270 of 567Top 50%
The Boeing: 1 patents #8,630 of 1,309Top 660%
Alton, IL: #20 of 84 inventorsTop 25%
Illinois: #26,899 of 84,256 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
William Lewis Epperson has been granted 3 US patents while listed as an inventor at Gentex. The first was granted in 1992 and the most recent in June 2002. William Lewis Epperson ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list William Lewis Epperson in Alton, IL, US.

Patents per Year

Patents granted per year, 1992 to 2002Bar chart with a peak of 1 patents in 1992.peak 11992: 1 patents19922001: 1 patents20012002: 1 patents2002

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6401259 Custom fitting assembly for helmet with protective hood Francis J. Kuna, Robert H. Nattress 2002-06-11 $6,588,000
6279172 Custom fitting assembly for helmet Francis J. Kuna, Robert H. Nattress 2001-08-28 $14,357,000
5153938 Acceleration protection ensemble and method 1992-10-13 $7,623,000