Issued Patents All Time
Showing 25 most recent of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11859041 | Modulating co-monomer selectivity using non-covalent dispersion interactions in group 4 olefin polymerization catalysts | Steven M. Bischof, Qing Yang, Orson L. Sydora, Graham R. Lief, Daniel H. Ess +1 more | 2024-01-02 |
| 11735293 | Methods for determining transition metal compound concentrations in multicomponent liquid systems | Qing Yang | 2023-08-22 |
| 11300501 | Methods for determining the activity of an activated chemically-treated solid oxide in olefin polymerizations | Qing Yang, Max P. McDaniel, Tony R. Crain, Ryan N. Rose | 2022-04-12 |
| 11170874 | Methods for determining transition metal compound concentrations in multicomponent liquid systems | Qing Yang | 2021-11-09 |
| 11125680 | Methods for determining the activity of an activated chemically-treated solid oxide in olefin polymerizations | Qing Yang, Max P. McDaniel, Tony R. Crain, Ryan N. Rose | 2021-09-21 |
| 10927201 | Ziegler-Natta—metallocene dual catalyst systems with activator-supports | Errun Ding, Chung Ching Tso, Youlu Yu, Qing Yang | 2021-02-23 |
| 10870094 | Methods for determining transition metal compound concentrations in multicomponent liquid systems | Qing Yang | 2020-12-22 |
| 10697889 | Methods for determining transition metal compound concentrations in multicomponent liquid systems | Qing Yang | 2020-06-30 |
| 10679734 | Methods for determining transition metal compound concentrations in multicomponent liquid systems | Qing Yang | 2020-06-09 |
| 10507445 | Methods for determining transition metal compound concentrations in multicomponent liquid systems | Qing Yang | 2019-12-17 |
| 10501567 | Methods for determining transition metal compound concentrations in multicomponent liquid systems | Qing Yang | 2019-12-10 |
| 10435492 | Ziegler-natta—metallocene dual catalyst systems with activator-supports | Errun Ding, Chung Ching Tso, Youlu Yu, Qing Yang | 2019-10-08 |
| 10030086 | Methods for determining transition metal compound concentrations in multicomponent liquid systems | Qing Yang | 2018-07-24 |
| 9926393 | Ziegler-natta—metallocene dual catalyst systems with activator-supports | Errun Ding, Chung Ching Tso, Youlu Yu, Qing Yang | 2018-03-27 |
| 9745230 | Oligomerization of alpha olefins using metallocene-SSA catalyst systems and use of the resultant polyalphaolefins to prepare lubricant blends | Brooke L. Small, Kenneth D. Hope, Qing Yang, Albert P. Masino, Max P. McDaniel +4 more | 2017-08-29 |
| 9718907 | Ziegler-Natta—metallocene dual catalyst systems with activator-supports | Errun Ding, Chung Ching Tso, Youlu Yu, Qing Yang | 2017-08-01 |
| 9605100 | Higher density polyolefins with improved stress crack resistance | Mark L. Hlavinka, Errun Ding, Paul J. DesLauriers, Yongwoo Inn, Lili Cui +3 more | 2017-03-28 |
| 9394393 | Higher density polyolefins with improved stress crack resistance | Mark L. Hlavinka, Errun Ding, Paul J. DesLauriers, Yongwoo Inn, Lili Cui +3 more | 2016-07-19 |
| 9334203 | Oligomerization of alpha olefins using metallocene-SSA catalyst systems and use of the resultant polyalphaolefins to prepare lubricant blends | Brooke L. Small, Kenneth D. Hope, Qing Yang, Albert P. Masino, Max P. McDaniel +4 more | 2016-05-10 |
| 9156970 | Higher density polyolefins with improved stress crack resistance | Mark L. Hlavinka, Errun Ding, Paul J. DesLauriers, Yongwoo Inn, Lili Cui +3 more | 2015-10-13 |
| 9040643 | Bridged metallocene catalyst systems with switchable hydrogen and comonomer effects | Qing Yang, Albert P. Masino, Christopher E. Wittner | 2015-05-26 |
| 9040642 | Catalyst systems containing a bridged metallocene | Qing Yang, Albert P. Masino, Christopher E. Wittner | 2015-05-26 |
| 9018407 | Stereoselective synthesis of bridged metallocene complexes | Qing Yang | 2015-04-28 |
| 8637616 | Bridged metallocene catalyst systems with switchable hydrogen and comonomer effects | Qing Yang, Albert P. Masino, Christopher E. Wittner | 2014-01-28 |
| 8629292 | Stereoselective synthesis of bridged metallocene complexes | Qing Yang | 2014-01-14 |