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USPTO Patent Rankings Data through Dec 31, 2025
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Viorel Duma — 3 Patents in 2021

Chevron: 3 patents #29 of 352Top 9%
Hercules, CA: #3 of 25 inventorsTop 15%
California: #8,414 of 66,859 inventorsTop 15%
Overall (2021): #58,909 of 548,734Top 15%
3 Patents 2021

Issued Patents 2021

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11041128 Catalytic remedy for advanced UCO bleed reduction in recycle hydrocracking operations Theodorus Ludovicus Michael Maesen, Derek Blackwell, Varut Komalarajun, Alexander E. Kuperman, Hyunuk Ryu +3 more 2021-06-22 $733,078,000
11000839 Regeneration of an ionic liquid catalyst by hydrogenation using a macroporous noble metal catalyst Hye Kyung Cho Timken, Jeff William Johns, Rahul Shankar Bhaduri, John V. Heyse 2021-05-11 $503,649,000
10968405 Catalytic remedy for advanced UCO bleed reduction in recycle hydrocracking operations Theodoras Ludovicus Michael Maesen, Derek Blackwell, Varut Komalarajun, Alexander E. Kuperman, Hyunuk Ryu +3 more 2021-04-06 $1,471,726,000