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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Alexander E. Kuperman — 2 Patents in 2021

Chevron: 2 patents #57 of 352Top 20%
San Ramon, CA: #92 of 474 inventorsTop 20%
California: #13,721 of 66,859 inventorsTop 25%
Overall (2021): #182,810 of 548,734Top 35%
2 Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11041128 Catalytic remedy for advanced UCO bleed reduction in recycle hydrocracking operations Theodorus Ludovicus Michael Maesen, Derek Blackwell, Viorel Duma, Varut Komalarajun, Hyunuk Ryu +3 more 2021-06-22 $733,078,000
10968405 Catalytic remedy for advanced UCO bleed reduction in recycle hydrocracking operations Theodoras Ludovicus Michael Maesen, Derek Blackwell, Viorel Duma, Varut Komalarajun, Hyunuk Ryu +3 more 2021-04-06 $1,471,726,000