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John Stevenson — 2 Patents

FTFina Technology: 1 patents #198 of 308Top 65%
Tulsa, OK: #829 of 2,344 inventorsTop 40%
Oklahoma: #4,543 of 12,736 inventorsTop 40%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
John Stevenson has been granted 2 US patents while listed as an inventor at Fina Technology. The first was granted in 1989 and the most recent in July 2011. John Stevenson ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list John Stevenson in Tulsa, OK, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7973111 Mechanically operated kill agent injection safety system and method to stop a runaway chemical reaction Thanh T. Nguyen, Tom Eugene Cushman, Alan Bitzer 2011-07-05
4862841 Internal combustion engine — 1989-09-05

Frequent Collaborators

Tom Eugene Cushman1 shared
Alan Bitzer1 shared
Thanh T. Nguyen1 shared

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