Issued Patents All Time
Showing 76–100 of 119 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5571880 | Organometallic fluorenyl compounds and use thereof in an alpha-olefin polymerization process | Helmut G. Alt, Syriac J. Palackal, Roland Zenk, Michael Schmid | 1996-11-05 |
| 5565396 | Catalyst systems and polymerization processes | Krisztina Frey, Gabriele von Massow, Helmut G. Alt | 1996-10-15 |
| 5565592 | Vinly-substituted bridged metallocenes | Konstantinos Patsidis, Bernd Peifer, Syriac J. Palackal, Helmut G. Alt, Rolf L. Geerts +2 more | 1996-10-15 |
| 5563284 | Cyclopentadienyl-type ligands, metallocenes, catalyst systems, preparation, and use | Krisztina Frey, Gabriele von Massow, Helmut G. Alt | 1996-10-08 |
| 5554795 | Process for preparing cyclopentadienyl-type ligands | Krisztina Frey, Gabriele von Massow, Helmut G. Alt | 1996-09-10 |
| 5541272 | High activity ethylene selective metallocenes | Michael Schmid, Helmut G. Alt | 1996-07-30 |
| 5534473 | Catalyst systems for producing broad molecular weight polyolefin | Rolf L. Geerts, Syriac J. Palackal, Ted M. Pettijohn | 1996-07-09 |
| 5498581 | Method for making and using a supported metallocene catalyst system | Helmut G. Alt, Bernd Peifer, Syriac J. Palackal, Gary L. Glass, Ted M. Pettijohn +2 more | 1996-03-12 |
| 5492975 | Polymer bound metallocenes | Bernd Peifer, Helmut G. Alt, Syriac J. Palackal | 1996-02-20 |
| 5492973 | Polymer bound ligands | Bernd Peifer, Helmut G. Alt, Syriac J. Palackal | 1996-02-20 |
| 5492974 | Process for preparing polymer bound metallocenes | Bernd Peifer, Helmut G. Alt, Syriac J. Palackal | 1996-02-20 |
| 5492978 | Process for preparing catalyst system | Bernd Peifer, Helmut G. Alt, Syriac J. Palackal | 1996-02-20 |
| 5473020 | Polymer bound ligands, polymer bound metallocenes, catalyst systems, preparation, and use | Bernd Peifer, Helmut G. Alt, Syriac J. Palackal | 1995-12-05 |
| 5466766 | Metallocenes and processes therefor and therewith | Konstantinos Patsidis, Bernd Peifer, Syriac J. Palackal, Helmut G. Alt, Rolf L. Geerts +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 |
| 5451649 | Organometallic fluorenyl compounds, preparation, and use | Roland Zenk, Helmut G. Alt | 1995-09-19 |
| 5436305 | Organometallic fluorenyl compounds, preparation, and use | Helmut G. Alt, Syriac J. Palackal, Konstantinos Patsidis, Rolf L. Geerts, Eric T. Hsieh +3 more | 1995-07-25 |
| 5420320 | Method for preparing cyclopentadienyl-type ligands and metallocene compounds | Roland Zenk, Helmut G. Alt, Syriac J. Palackal | 1995-05-30 |
| 5416179 | Catalyst compositions and olefin polymerization | Paul Barbee | 1995-05-16 |
| 5401817 | Olefin polymerization using silyl-bridged metallocenes | Syriac J. Palackal, Helmut G. Alt, Konstantinos Patsidis, Tara G. Hill, Gil R. Hawley +2 more | 1995-03-28 |
| 5399636 | Metallocenes and processes therefor and therewith | Helmut G. Alt, Konstantinos Patsidis, Rolf L. Geerts, Bernd Peifer, Syriac J. Palackal | 1995-03-21 |
| 5319029 | Polyethylene blends | Joel L. Martin, William R. Coutant, Max P. McDaniel | 1994-06-07 |
| 5306775 | Polyethylene blends | Joel L. Martin, William R. Coutant, Max P. McDaniel | 1994-04-26 |
| 5276115 | Mono-1-olefin polymerization in the presence of hydrogen and a cyclopentadienyl compound | Robert Bohmer, Kenneth L. Anderson | 1994-01-04 |
| 5275992 | Olefin polymerization | Kent E. Mitchell, Max P. McDaniel, Elizabeth A. Benham, Grover W. Cone | 1994-01-04 |