Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7230128 | Organometallic fluorenyl compounds, preparations, and use | Helmut G. Alt, Syriac J. Palackal, Konstantinos Patsidis, M. Bruce Welch, Eric T. Hsieh +3 more | 2007-06-12 |
| 7022781 | Polymerization catalyst systems and processes using alkyl lithium compounds as a cocatalyst | Max P. McDaniel, Joseph S. Shveima, Elizabeth A. Benham, James L. Smith | 2006-04-04 |
| 6828268 | Polymerization catalyst systems and processes using alkyl lithium compounds as a cocatalyst | Max P. McDaniel, Joseph S. Shveima, Elizabeth A. Benham, James L. Smith | 2004-12-07 |
| 6420579 | Organometallic fluorenyl compounds, preparation, and use | Helmut G. Alt, Syriac J. Palackal, Konstantinos Patsidis, M. Bruce Welch, Eric T. Hsieh +3 more | 2002-07-16 |
| 6403734 | Organometallic fluorenyl compounds, preparation, and use | Helmut G. Alt, Syriac J. Palackal, Konstantinos Patsidis, M. Bruce Welch, Eric T. Hsieh +3 more | 2002-06-11 |
| 6353071 | Processes to produce organo-aluminoxane compositions | Syriac J. Palackal, M. Bruce Welch | 2002-03-05 |
| 6162936 | Organometallic fluorenyl compounds, preparation, and use | Helmut G. Alt, Syriac J. Palackal, Konstantinos Patsidis, M. Bruce Welch, Eric T. Hsieh +3 more | 2000-12-19 |
| 6096915 | Processes to produce organo-aluminoxane compositions | Syriac J. Palackal, M. Bruce Welch | 2000-08-01 |
| 6005061 | Organo-aluminoxy product and use | Tara G. Hill, Scott E. Kufeld | 1999-12-21 |
| 5962592 | Ethylene copolymer compositions | Kevin J. Hess, Charles D. Houser | 1999-10-05 |
| 5670589 | Organoaluminoxy product, catalyst systems, preparation, and use | M. Bruce Welch, Syriac J. Palackal, Helmut G. Alt, Bernd Peifer, Harold R. Deck | 1997-09-23 |
| 5627118 | Silyl bridged metallocenes and use thereof | Syriac J. Palackal, Helmut G. Alt, Konstantinos Patsidis, Tara G. Hill, Gil R. Hawley +2 more | 1997-05-06 |
| 5627247 | Organometallic fluorenyl compounds and use thereof in olefin polymerization | Helmut G. Alt, Gil R. Hawley, Paul D. Smith, Syriac J. Palackal, Michael Schmid +4 more | 1997-05-06 |
| 5616752 | Metallocenes and processes therefor and therewith | Konstantinos Patsidis, Bernd Peifer, Helmut G. Alt, Darryl R. Fahey, M. Bruce Welch +2 more | 1997-04-01 |
| 5610247 | Unbridged metallocenes of 9-substituted fluorenyl compounds and use thereof | Helmut G. Alt, Syriac J. Palackal, Konstantinos Patsidis, M. Bruce Welch, Eric T. Hsieh +5 more | 1997-03-11 |
| 5594078 | Process for producing broad molecular weight polyolefin | M. Bruce Welch, Syriac J. Palackal, Ted M. Pettijohn | 1997-01-14 |
| 5583189 | Polymerization processes | Syriac J. Palackal, Ted M. Pettijohn, Robert M. Infield | 1996-12-10 |
| 5565592 | Vinly-substituted bridged metallocenes | Konstantinos Patsidis, Bernd Peifer, Syriac J. Palackal, Helmut G. Alt, M. Bruce Welch +2 more | 1996-10-15 |
| 5534473 | Catalyst systems for producing broad molecular weight polyolefin | M. Bruce Welch, Syriac J. Palackal, Ted M. Pettijohn | 1996-07-09 |
| 5496781 | Metallocene catalyst systems, preparation, and use | Syriac J. Palackal, Ted M. Pettijohn, Robert M. Infield | 1996-03-05 |
| 5480948 | Olefin polymerization process | — | 1996-01-02 |
| 5480848 | Catalyst composition and the use in olefin polymerization | — | 1996-01-02 |
| 5466766 | Metallocenes and processes therefor and therewith | Konstantinos Patsidis, Bernd Peifer, Syriac J. Palackal, Helmut G. Alt, M. Bruce Welch +2 more | 1995-11-14 |
| 5459218 | Syndiotactic polypropylene prepared using silyl bridged metallocenes | Syriac J. Palackal, Helmut G. Alt, Konstantinos Patsidis, Tara G. Hill, Gil R. Hawley +2 more | 1995-10-17 |
| 5459203 | Ethylene cone-shell polymer powders | Elizabeth A. Benham, Max P. McDaniel | 1995-10-17 |