Issued Patents All Time
Showing 25 most recent of 256 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |