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USPTO Patent Rankings Data through Dec 31, 2025
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Grant C. Karsner — 1 Patent

ExxonMobil: 1 patents #5,674 of 10,161Top 60%
Voorhees, NJ: #114 of 228 inventorsTop 50%
New Jersey: #41,444 of 69,400 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Grant C. Karsner has been granted 1 US patent while listed as an inventor at ExxonMobil. All of these patents were granted in 1989. Grant C. Karsner ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Grant C. Karsner in Voorhees, NJ, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4880748 Method for control of visbreaker severity Lawrence J. Altman, Byung C. Choi 1989-11-14 $9,512,000