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

William Clark — 5 Patents

SSSolid State Scientific: 2 patents #7 of 19Top 40%
CLCorning Lasertron: 1 patents #7 of 17Top 45%
Nortel Networks Limited: 1 patents #2,518 of 5,294Top 50%
UAUS Army: 1 patents #2,854 of 6,974Top 45%
Tyngsborough, MA: #48 of 193 inventorsTop 25%
Massachusetts: #23,696 of 88,656 inventorsTop 30%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
William Clark has been granted 5 US patents while listed as an inventor at Solid State Scientific. The first was granted in 2002 and the most recent in October 2023. William Clark ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list William Clark in Tyngsborough, MA, US.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11794140 Auxiliary filter for enhanced chemical protection Gregory W. Peterson, Ryan Ballantyne, Michael Boruch, Bruce Corso, William B. Feaver +13 more 2023-10-24
6870239 Avalanche photodiode having an extrinsic absorption region 2005-03-22
6794631 Three-terminal avalanche photodiode 2004-09-21
6747296 Avalanche photodiode multiplication region and avalanche photodiode with low impact ionization rate ratio 2004-06-08
6495380 Epitaxially grown avalanche photodiode Serguei An 2002-12-17 $25,588,000