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USPTO Patent Rankings Data through Dec 31, 2025
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Dennis D. Fleming — 2 Patents

ExxonMobil: 2 patents #3,942 of 10,161Top 40%
East Horsley, GB: #4 of 6 inventorsTop 70%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Dennis D. Fleming has been granted 2 US patents while listed as an inventor at ExxonMobil. All of these patents were granted in 1999. Dennis D. Fleming ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Dennis D. Fleming in East Horsley, GB.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6007787 Countercurrent reaction vessel Ramesh Gupta, David C. Dankworth, Edward S. Ellis, James J. Schorfheide 1999-12-28 $179,508,000
5985131 Hydroprocessing in a countercurrent reaction vessel Ramesh Gupta, David C. Dankworth, Edward S. Ellis, James J. Schorfheide 1999-11-16 $260,048,000