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USPTO Patent Rankings Data through Dec 31, 2025
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James C. Thompsen — 3 Patents

COConoco: 3 patents #121 of 638Top 20%
Ponca City, OK: #134 of 444 inventorsTop 35%
Oklahoma: #3,385 of 12,736 inventorsTop 30%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
James C. Thompsen has been granted 3 US patents while listed as an inventor at Conoco. The first was granted in 1992 and the most recent in March 1993. James C. Thompsen ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list James C. Thompsen in Ponca City, OK, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5190662 Removal of iron sulfide particles from alkanolamine solutions Alfred E. Keller, Fred C. Veatch, Arthur L. Cummings, Regina A. Severson 1993-03-02
5162084 Process for monitoring and controlling an alkanolamine reaction process Arthur L. Cummings, Fred C. Veatch, Alfred E. Keller, Regina A. Severson 1992-11-10
5131943 Process for the separation of precious group VIII a metals from cyano complexes of such metals and other metals Joe D. Allison 1992-07-21