Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
QY

Qing Yang — 256 Patents

Chevron: 255 patents #2 of 4,788Top 1%
Bartlesville, OK: #2 of 1,143 inventorsTop 1%
Oklahoma: #5 of 12,736 inventorsTop 1%
Overall (All Time): #1,889 of 4,157,543Top 1%
256 Patents All Time
Qing Yang has been granted 256 US patents while listed as an inventor at Chevron. The first was granted in 2006 and the most recent in September 2025. Qing Yang ranks #1,889 of 4,157,543 US inventors in our database (top 0.05%). Patent records list Qing Yang in Bartlesville, OK, US.

Issued Patents All Time

Showing 1–25 of 256 patents

Patent #TitleCo-InventorsDate
12404357 Dual metallocene bimodal HDPE resins with improved stress crack resistance Youlu Yu, Ashish M. Sukhadia, David A. Soules, Jeremy M. Praetorius, Vivek Rohatgi 2025-09-02
12351670 Modifications of sulfated bentonites and uses thereof in metallocene catalyst systems for olefin polymerization Max P. McDaniel, Ryan N. Rose, Kathy S. Clear, Graham R. Lief, Eric D. Schwerdtfeger +3 more 2025-07-08
12351657 Controlling long-chain branch content with dual activator-supports Max P. McDaniel, Graham R. Lief, Carlos A. Cruz, Yongwoo Inn, Jared L. Barr 2025-07-08
12319770 High porosity fluorided silica-coated alumina activator-supports and uses thereof in metallocene-based catalyst systems for olefin polymerization Max P. McDaniel, Eric D. Schwerdtfeger, Carlos A. Cruz, Jinping Zhou, Anand Ramanathan +2 more 2025-06-03
12297304 Catalyst composition and method for preparing polyethylene Graham R. Lief, Eric J. Haschke 2025-05-13
12246312 Processes for producing fluorided solid oxides and uses thereof in metallocene-based catalyst systems Max P. McDaniel, Kathy S. Clear, Tony R. Crain 2025-03-11
12240933 Processes for preparing metallocene-based catalyst systems for the control of long chain branch content Max P. McDaniel, Tony R. Crain 2025-03-04
12146018 High porosity fluorided silica-coated alumina activator-supports and uses thereof in metallocene-based catalyst systems for olefin polymerization Max P. McDaniel, Eric D. Schwerdtfeger, Carlos A. Cruz, Jinping Zhou, Anand Ramanathan +2 more 2024-11-19
12122857 Controlling long-chain branch content with dual activator-supports Max P. McDaniel, Graham R. Lief, Carlos A. Cruz, Yongwoo Inn, Jared L. Barr 2024-10-22
12037421 Processes for preparing metallocene-based catalyst systems with an alcohol compound Ryan N. Rose, Max P. McDaniel, Zhihui Gu 2024-07-16
11998902 Processes for producing fluorided solid oxides and uses thereof in metallocene-based catalyst systems Max P. McDaniel, Kathy S. Clear, Tony R. Crain 2024-06-04
11999814 Modifications of sulfated bentonites and uses thereof in metallocene catalyst systems for olefin polymerization Max P. McDaniel, Ryan N. Rose, Kathy S. Clear, Graham R. Lief, Eric D. Schwerdtfeger +3 more 2024-06-04
11993667 Catalyst composition and method for preparing polyethylene Graham R. Lief, Eric J. Haschke 2024-05-28
11945938 Bimodal polyethylene copolymers Graham R. Lief, Youlu Yu 2024-04-02
11945897 Processes for preparing metallocene-based catalyst systems for the control of long chain branch content Max P. McDaniel, Tony R. Crain 2024-04-02
11912809 High porosity fluorided silica-coated alumina activator-supports and uses thereof in metallocene-based catalyst systems for olefin polymerization Max P. McDaniel, Eric D. Schwerdtfeger, Carlos A. Cruz, Jinping Zhou, Anand Ramanathan +2 more 2024-02-27
11859024 Dual catalyst system for producing polyethylene with long chain branching for blow molding applications Jeremy M. Praetorius, Alfred Brown, Yongwoo Inn, Youlu Yu, Ashish M. Sukhadia 2024-01-02
11859041 Modulating co-monomer selectivity using non-covalent dispersion interactions in group 4 olefin polymerization catalysts Steven M. Bischof, Orson L. Sydora, Graham R. Lief, Richard M. Buck, Daniel H. Ess +1 more 2024-01-02
11851505 Dual catalyst system for producing high density polyethylenes with long chain branching Errun Ding, Randall S. Muninger, Youlu Yu, Yongwoo Inn 2023-12-26
11845826 Processes for preparing metallocene-based catalyst systems for the control of long chain branch content Max P. McDaniel, Tony R. Crain 2023-12-19
11773198 Polyolefin process monitoring and control Paul J. DesLauriers, Jeff S. Fodor, Eric J. Netemeyer 2023-10-03
11753488 Processes for preparing metallocene-based catalyst systems with an alcohol compound Ryan N. Rose, Max P. McDaniel, Zhihui Gu 2023-09-12
11735293 Methods for determining transition metal compound concentrations in multicomponent liquid systems Richard M. Buck 2023-08-22
11731122 Processes for producing fluorided solid oxides and uses thereof in metallocene-based catalyst systems Max P. McDaniel, Kathy S. Clear, Tony R. Crain 2023-08-22
11667777 Bimodal polyethylene copolymers Graham R. Lief, Youlu Yu 2023-06-06