Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5670589 | Organoaluminoxy product, catalyst systems, preparation, and use | Rolf L. Geerts, M. Bruce Welch, Syriac J. Palackal, Helmut G. Alt, Harold R. Deck | 1997-09-23 |
| 5654454 | Metallocene preparation and use | Helmut G. Alt, M. Bruce Welch | 1997-08-05 |
| 5631203 | Metallocene compounds and preparation thereof containing terminal alkynes | M. Bruce Welch, Helmut G. Alt | 1997-05-20 |
| 5616752 | Metallocenes and processes therefor and therewith | Konstantinos Patsidis, Helmut G. Alt, Rolf L. Geerts, Darryl R. Fahey, M. Bruce Welch +2 more | 1997-04-01 |