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USPTO Patent Rankings Data through Sept 30, 2025
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William C. Ellis — 5 Patents in 2021

Chevron: 5 patents #11 of 352Top 4%
Bartlesville, OK: #8 of 74 inventorsTop 15%
Oklahoma: #44 of 1,049 inventorsTop 5%
Overall (2021): #26,220 of 548,734Top 5%
5 Patents 2021

Issued Patents 2021

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
11180435 Chromium-catalyzed production of alcohols from hydrocarbons Carlos A. Cruz, Masud M. Monwar, Max P. McDaniel, Jared L. Barr, Kathy S. Clear 2021-11-23
11173475 Light treatment of chromium catalysts and related catalyst preparation systems and polymerization processes Kathy S. Clear, Max P. McDaniel, Eric D. Schwerdtfeger, Deloris R. Gagan, Carlos A. Cruz +1 more 2021-11-16
11149098 Rapid activation process and activation treatments for chromium catalysts for producing high melt index polyethylenes Max P. McDaniel, Kathy S. Clear, Deloris R. Gagan, Ted H. Cymbaluk 2021-10-19
11078143 Chromium-catalyzed production of alcohols from hydrocarbons Max P. McDaniel, Carlos A. Cruz, Masud M. Monwar, Jared L. Barr 2021-08-03
10889664 Surfactant as titanation ligand Max P. McDaniel, Kathy S. Clear, Deloris R. Gagan 2021-01-12