Issued Patents 1997
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5670589 | Organoaluminoxy product, catalyst systems, preparation, and use | Rolf L. Geerts, Syriac J. Palackal, Helmut G. Alt, Bernd Peifer, Harold R. Deck | 1997-09-23 |
| 5668230 | Olefin polymerization | Peter Schertl, Helmut G. Alt | 1997-09-16 |
| 5654454 | Metallocene preparation and use | Bernd Peifer, Helmut G. Alt | 1997-08-05 |
| 5650528 | Metallocene compounds | Krisztina Frey, Gabriele von Massow, Helmut G. Alt | 1997-07-22 |
| 5646323 | Process for preparing metallocene compounds | Krisztina Frey, Gabriele von Massow, Helmut G. Alt | 1997-07-08 |
| 5637744 | Bis fluorenyl metallocenes and use thereof | Helmut G. Alt, Konstantinos Patsidis, Peter P. Chu | 1997-06-10 |
| 5631335 | Process of polymerizing olefins using diphenylsilyl or dimethyl tin bridged 1-methyl fluorenyl metallocenes | Helmut G. Alt, Konstantinos Patsidis, Peter P. Chu | 1997-05-20 |
| 5631203 | Metallocene compounds and preparation thereof containing terminal alkynes | Helmut G. Alt, Bernd Peifer | 1997-05-20 |
| 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 |
| 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 |
| 5616752 | Metallocenes and processes therefor and therewith | Konstantinos Patsidis, Bernd Peifer, Helmut G. Alt, Rolf L. Geerts, Darryl R. Fahey +2 more | 1997-04-01 |
| 5610247 | Unbridged metallocenes of 9-substituted fluorenyl compounds and use thereof | Helmut G. Alt, Syriac J. Palackal, Konstantinos Patsidis, Rolf L. Geerts, Eric T. Hsieh +5 more | 1997-03-11 |
| 5594078 | Process for producing broad molecular weight polyolefin | Rolf L. Geerts, Syriac J. Palackal, Ted M. Pettijohn | 1997-01-14 |
| 5591879 | Process for preparing cyclopentadienyl-type ligands | Krisztina Frey, Gabriele von Massow, Helmut G. Alt | 1997-01-07 |