Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Mark C. Clark — 2 Patents

GE: 2 patents #13,632 of 36,430Top 40%
Wilmington, NC: #329 of 905 inventorsTop 40%
North Carolina: #18,944 of 45,564 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Mark C. Clark has been granted 2 US patents while listed as an inventor at GE. All of these patents were granted in 1998. Mark C. Clark ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Mark C. Clark in Wilmington, NC, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5812623 Self-aligning absorber tube for a control rod in a nuclear reactor James E. Holden, Kevin L. Ledford, Richard D. Wittmeier, Justin L. Banks 1998-09-22 $64,233,000
5706318 Rectangular absorber tube for a control rod in a nuclear reactor Kevin L. Ledford, James E. Holden, Richard D. Wittmeier, Justin L. Banks 1998-01-06 $63,940,000