Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Thomas Clark — 4 Patents

CCCompaq Computer: 2 patents #518 of 1,604Top 35%
UCUtc Fuel Cells: 1 patents #98 of 183Top 55%
UPUtc Power: 1 patents #62 of 141Top 45%
Santa Cruz, CA: #679 of 1,911 inventorsTop 40%
California: #126,026 of 386,348 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Thomas Clark has been granted 4 US patents while listed as an inventor at Compaq Computer. The first was granted in 2000 and the most recent in June 2008. Thomas Clark ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Thomas Clark in Santa Cruz, CA, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7381491 Maximizing PEM fuel cell power plant system efficiency at optimum system pressure Parthasarathy Seshadri, Alfred Meyer, Leslie L. Van Dine 2008-06-03
6986959 Low temperature fuel cell power plant operation Paul R. Margiott, Albert P. Grasso, Richard D. Breault, Leslie L. Van Dine, Margaret M. Steinbugler +1 more 2006-01-17
6393503 Efficient transfer of data and events between processes and between processes and drivers in a parallel, fault tolerant message based operating system Leonard R. Fishler 2002-05-21
6032267 Apparatus and method for efficient modularity in a parallel, fault tolerant, message based operating system Leonard R. Fishler 2000-02-29 $187,707,000