Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11708438 | Method of producing polyethylene and polyethylene thereof | Timothy M. Boller, Ching-Tai Lue, Francis C. Rix, Daniel P. Zilker, Jr., C. Jeff Harlan +3 more | 2023-07-25 |
| 11414505 | Producing polyolefin products | C. Jeff Harlan, Timothy R. Lynn, Timothy M. Boller | 2022-08-16 |
| 11230614 | Methods for making polyethylene polymers | Brandon C. Locklear, Haiqing Peng, Bruce J. Savatsky, James M. Farley, Daniel P. Zilker, Jr. +2 more | 2022-01-25 |
| 11034783 | Method of producing polyethylene and polyethylene thereof | Timothy M. Boller, Ching-Tai Lue, Francis C. Rix, Daniel P. Zilker, Jr., C. Jeff Harlan +3 more | 2021-06-15 |
| 10865259 | Producing polyolefin products | C. Jeff Harlan, Timothy R. Lynn, Timothy M. Boller | 2020-12-15 |
| 10399052 | Methods of controlling polyolefin melt index | Bruce J. Savatsky, Natarajan Muruganandam, Timothy R. Lynn, James M. Farley, Daniel P. Zilker, Jr. | 2019-09-03 |
| 10329364 | Catalyst composition, methods of preparation and use in a polymerization process | Richard B. Pannell, David M. Glowczwski, Chi-I Kuo, Timothy R. Lynn, Phuong A. Cao +2 more | 2019-06-25 |
| 10253121 | Method of producing polyethylene and polyethylene thereof | Timothy M. Boller, Ching-Tai Lue, Francis C. Rix, Daniel P. Zilker, Jr., C. Jeff Harlan +3 more | 2019-04-09 |
| 10221254 | Closed reactor transitions between metallocene catalysts | Brandon C. Locklear, R. Eric Pequeno, Richard B. Pannell, Rich John Stolz, William A. Matthews | 2019-03-05 |
| 10167351 | Methods of controlling polyolefin melt index while increasing catalyst productivity | Bruce J. Savatsky, Natarajan Muruganandam, Timothy R. Lynn, James M. Farley, Daniel P. Zilker, Jr. | 2019-01-01 |
| 10035868 | Continuity compositions and methods of making and using the same | Richard B. Pannell, David M. Glowczwski, Chi-I Kuo, Timothy R. Lynn, Phuong A. Cao +2 more | 2018-07-31 |
| 8742041 | Processes for the polymerization of olefins with extracted metal carboxylate salts | R. Eric Pequeno, Kevin J. Cann, Chi-I Kuo, Bruce J. Savatsky, Eric J. Markel +3 more | 2014-06-03 |
| 8129481 | Methods for applying solution catalysts to reactor surfaces | Robert O. Hagerty, Kevin B. Stavens, Randall B. Laird, Zerong Lin, Michael E. Muhle +7 more | 2012-03-06 |
| 8088870 | Methods for applying solution catalysts to reactor surfaces | Robert O. Hagerty, Kevin B. Stavens, Randall B. Laird, Zerong Lin, Michael E. Muhle +7 more | 2012-01-03 |
| 8067509 | Reactor systems and processes for using the same | Ping Cai, Jose Fernando Cevallos-Candau, Ian D. Burdett, W. Scott Hamilton, Daniel N. Thomas, Jr. | 2011-11-29 |
| 6540165 | Process for handling particulate material at elevated pressure | Ronald S. Eisinger, Daniel P. Zilker, Jr., David M. Gaines | 2003-04-01 |
| 6388027 | Transition strategy for the production of sticky polymers | Daniel P. Zilker, Jr., William David Vacek, Mark Edwin O'Rosky | 2002-05-14 |
| 6214903 | Post-reactor process for treating polymers prepared in a gas phase polymerization in the presence of an inert particulate material | Ronald S. Eisinger, David N. Jones, Ronald Irvin Raether, David Merrill Rebhan, Joseph Patrick Welch +1 more | 2001-04-10 |
| 6111034 | Static control in olefin polymerization | Mark G. Goode, Clark C. Williams, Thomas J. McNeil, Kiu H. Lee | 2000-08-29 |
| 6011128 | Process for conditioning a gas-phase reactor to produce an ethylene-propylene or ethylene-propylene-diene rubber | Robert Steven Eisinger, Kiu H. Lee, Daniel P. Zilker, Jr. | 2000-01-04 |
| 5625012 | Process for reducing polymer build-up in recycle lines and heat exchangers during polymerization of alpha olefins | Kiu H. Lee, Xinlai Bai | 1997-04-29 |
| 5616661 | Process for controlling particle growth during production of sticky polymers | Ronald S. Eisinger, Christopher Scott Hunnisett, Kiu H. Lee, Kevin J. Cann | 1997-04-01 |
| 5548040 | Process for passivation of a reactor after shutdown of alpha olefin polymerization processes | Kevin J. Cann, Daniel P. Zilker, Jr., Kiu H. Lee | 1996-08-20 |
| 5510433 | Process for the production of sticky polymers | Edgar C. Baker, Jose Fernando Cevallos-Candau, Kiu H. Lee, Allen Noshay | 1996-04-23 |
| 5416175 | Method for reducing sheeting during polymerization of .alpha.-olefins | Gyung-Ho Song, Kiu H. Lee, Henry B. Hinckley | 1995-05-16 |