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

Errun Ding — 49 Patents

Chevron: 49 patents #48 of 4,788Top 2%
Mason, OH: #34 of 1,011 inventorsTop 4%
Ohio: #781 of 73,341 inventorsTop 2%
Overall (All Time): #55,592 of 4,157,543Top 2%
49 Patents All Time
Errun Ding has been granted 49 US patents while listed as an inventor at Chevron. The first was granted in 2012 and the most recent in March 2025. Errun Ding ranks #55,592 of 4,157,543 US inventors in our database (top 1.3%). Patent records list Errun Ding in Mason, OH, US.

Issued Patents All Time

Showing 1–25 of 49 patents

Patent #TitleCo-InventorsDate
12240964 Dual catalyst system for producing LLDPE and MDPE copolymers with long chain branching for film applications Chung Ching Tso, Max P. McDaniel, Ashish M. Sukhadia, Youlu Yu, Randall S. Muninger +2 more 2025-03-04
12031022 Dual catalyst system for producing LLDPE and MDPE copolymers with long chain branching for film applications Chung Ching Tso, Max P. McDaniel, Ashish M. Sukhadia, Youlu Yu, Randall S. Muninger +2 more 2024-07-09
11851505 Dual catalyst system for producing high density polyethylenes with long chain branching Qing Yang, Randall S. Muninger, Youlu Yu, Yongwoo Inn 2023-12-26
11339279 Dual catalyst system for producing LLDPE and MDPE copolymers with long chain branching for film applications Chung Ching Tso, Max P. McDaniel, Ashish M. Sukhadia, Youlu Yu, Randall S. Muninger +2 more 2022-05-24
11325995 Metallocene catalysts for polyethylene Qing Yang, Carlton E. Ash, Randall S. Muninger, Jim B. Askew, Zhou Chen 2022-05-10
11186707 Bimodal PE resins with improved melt strength William B. Beaulieu 2021-11-30
11174378 Metallocene catalyst system for producing LLDPE copolymers with tear resistance and low haze Chung Ching Tso, Randall S. Muninger, John T. Blagg, Yongwoo Inn, Max P. McDaniel +2 more 2021-11-16
11028258 Metallocene catalyst system for producing LLDPE copolymers with tear resistance and low haze Chung Ching Tso, Randall S. Muninger, John T. Blagg, Yongwoo Inn, Max P. McDaniel +2 more 2021-06-08
11014997 Dual catalyst system for producing high density polyethylenes with long chain branching Qing Yang, Randall S. Muninger, Youlu Yu, Yongwoo Inn 2021-05-25
10927201 Ziegler-Natta—metallocene dual catalyst systems with activator-supports Chung Ching Tso, Youlu Yu, Qing Yang, Richard M. Buck 2021-02-23
10899855 Low density polyolefin resins with low molecular weight and high molecular weight components, and films made therefrom Ashish M. Sukhadia, Max P. McDaniel, Guylaine St. Jean, Qing Yang, Daniel G. Hert +1 more 2021-01-26
10550252 Bimodal PE resins with improved melt strength William B. Beaulieu 2020-02-04
10544236 Dual catalyst system for producing LLDPE copolymers with improved processability Chung Ching Tso, Randall S. Muninger, Qing Yang, Youlu Yu, Yongwoo Inn 2020-01-28
10435492 Ziegler-natta—metallocene dual catalyst systems with activator-supports Chung Ching Tso, Youlu Yu, Qing Yang, Richard M. Buck 2019-10-08
10358506 Dual catalyst system for producing LLDPE copolymers with improved processability Chung Ching Tso, Randall S. Muninger, Qing Yang, Youlu Yu, Yongwoo Inn 2019-07-23
10167353 Methods for increasing polymer production rates with halogenated hydrocarbon compounds William B. Beaulieu 2019-01-01
10113016 Low density polyolefin resins with low molecular weight and high molecular weight components, and films made therefrom Ashish M. Sukhadia, Max P. McDaniel, Guylaine St. Jean, Qing Yang, Daniel G. Hert +1 more 2018-10-30
10005861 Methods for increasing polymer production rates with halogenated hydrocarbon compounds William B. Beaulieu 2018-06-26
9926393 Ziegler-natta—metallocene dual catalyst systems with activator-supports Chung Ching Tso, Youlu Yu, Qing Yang, Richard M. Buck 2018-03-27
9845367 Heterogeneous Ziegler-Natta catalysts with fluorided silica-coated alumina Jeffrey F. Greco, Qing Yang, Youlu Yu 2017-12-19
9758599 Heterogeneous Ziegler-Natta catalysts with fluorided silica-coated alumina Qing Yang, Lloyd W. Guatney, Jeffrey F. Greco 2017-09-12
9718907 Ziegler-Natta—metallocene dual catalyst systems with activator-supports Chung Ching Tso, Youlu Yu, Qing Yang, Richard M. Buck 2017-08-01
9605100 Higher density polyolefins with improved stress crack resistance Mark L. Hlavinka, Paul J. DesLauriers, Yongwoo Inn, Lili Cui, Qing Yang +3 more 2017-03-28
9605097 Low density polyolefin resins with low molecular weight and high molecular weight components, and films made therefrom Ashish M. Sukhadia, Max P. McDaniel, Guylaine St. Jean, Qing Yang, Daniel G. Hert +1 more 2017-03-28
9540457 Ziegler-natta—metallocene dual catalyst systems with activator-supports Qing Yang, Lloyd W. Guatney, Jeffrey F. Greco 2017-01-10