Issued Patents All Time
Showing 25 most recent of 537 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12421331 | Systems and methods for chromium catalyst activation | Zhihui Gu, Ted H. Cymbaluk, Anand Ramanathan, Julian Abrego, Taryn Huber +3 more | 2025-09-23 |
| 12403454 | Methods of chromium catalyst activation to reduce gels and improve melt index potential | Zhihui Gu, Ted H. Cymbaluk, Anand Ramanathan, Julian Abrego, Taryn Huber +1 more | 2025-09-02 |
| 12370536 | Hydrocyclone modification of catalyst system components for use in olefin polymerization | Mark Scott, Evan Merk | 2025-07-29 |
| 12365746 | Aqueous methods for titanating a chromium/silica catalyst with an alkali metal | Anand Ramanathan, Jared L. Barr, Andrew T. Blagg, Christopher E. Wittner, Alan L. Solenberger +2 more | 2025-07-22 |
| 12351657 | Controlling long-chain branch content with dual activator-supports | Graham R. Lief, Qing Yang, Carlos A. Cruz, Yongwoo Inn, Jared L. Barr | 2025-07-08 |
| 12351545 | Methanol production from methane utilizing a supported chromium catalyst | Jamie N. Sutherland, James Hillier, Gregory G. Hendrickson | 2025-07-08 |
| 12351670 | Modifications of sulfated bentonites and uses thereof in metallocene catalyst systems for olefin polymerization | Qing Yang, Ryan N. Rose, Kathy S. Clear, Graham R. Lief, Eric D. Schwerdtfeger +3 more | 2025-07-08 |
| 12350650 | Methods for making supported chromium catalysts with increased polymerization activity | Kathy S. Clear | 2025-07-08 |
| 12325829 | Solid oxide and chemically-treated solid oxide catalysts for the pyrolysis of polyethylene | David W. Dockter, Kathy S. Clear | 2025-06-10 |
| 12319770 | High porosity fluorided silica-coated alumina activator-supports and uses thereof in metallocene-based catalyst systems for olefin polymerization | Eric D. Schwerdtfeger, Qing Yang, Carlos A. Cruz, Jinping Zhou, Anand Ramanathan +2 more | 2025-06-03 |
| 12319774 | Particle size control of silyl chromate catalysts and uses thereof in fluidized bed reactors | Eric D. Schwerdtfeger, Jeffrey S. Lowell, Scott E. Kufeld | 2025-06-03 |
| 12275679 | Transition metal-catalyzed production of alcohol and carbonyl compounds from hydrocarbons | Masud M. Monwar, Jared L. Barr, Carlos A. Cruz, Kathy S. Clear, William C. Ellis | 2025-04-15 |
| 12269911 | Aqueous methods for titanating a chromium/silica catalyst with an alkali metal | Anand Ramanathan, Jared L. Barr, Andrew T. Blagg, Christopher E. Wittner, Alan L. Solenberger +2 more | 2025-04-08 |
| 12246312 | Processes for producing fluorided solid oxides and uses thereof in metallocene-based catalyst systems | Kathy S. Clear, Qing Yang, Tony R. Crain | 2025-03-11 |
| 12240933 | Processes for preparing metallocene-based catalyst systems for the control of long chain branch content | Qing Yang, Tony R. Crain | 2025-03-04 |
| 12240964 | Dual catalyst system for producing LLDPE and MDPE copolymers with long chain branching for film applications | Errun Ding, Chung Ching Tso, Ashish M. Sukhadia, Youlu Yu, Randall S. Muninger +2 more | 2025-03-04 |
| 12202914 | Rapid activation process and activation treatments for chromium catalysts for producing high melt index polyethylenes | Kathy S. Clear, William C. Ellis, Deloris R. Gagan, Ted H. Cymbaluk | 2025-01-21 |
| 12161997 | Aqueous methods for titanating a chromium/silica catalyst | Kathy S. Clear, Eric D. Schwerdtfeger, Jeremy M. Praetorius | 2024-12-10 |
| 12157109 | Methods for making supported chromium catalysts with increased polymerization activity | Kathy S. Clear | 2024-12-03 |
| 12152199 | Solid oxide and chemically-treated solid oxide catalysts for the pyrolysis of polyethylene | David W. Dockter, Kathy S. Clear | 2024-11-26 |
| 12146018 | High porosity fluorided silica-coated alumina activator-supports and uses thereof in metallocene-based catalyst systems for olefin polymerization | Eric D. Schwerdtfeger, Qing Yang, Carlos A. Cruz, Jinping Zhou, Anand Ramanathan +2 more | 2024-11-19 |
| 12134591 | Methanol production from methane utilizing a supported chromium catalyst | Jamie N. Sutherland, James Hillier, Gregory G. Hendrickson | 2024-11-05 |
| 12122857 | Controlling long-chain branch content with dual activator-supports | Graham R. Lief, Qing Yang, Carlos A. Cruz, Yongwoo Inn, Jared L. Barr | 2024-10-22 |
| 12077627 | Aqueous methods for titanating a chromium/silica catalyst with an alkali metal | Anand Ramanathan, Jared L. Barr, Andrew T. Blagg, Christopher E. Wittner, Alan L. Solenberger +2 more | 2024-09-03 |
| 12059672 | Modified supported chromium catalysts and ethylene-based polymers produced therefrom | Masud M. Monwar, Carlos A. Cruz, Jared L. Barr | 2024-08-13 |