Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882400 | Process for gas phase polymerization of olefins in a fluidized bed reactor | Andre Dumain | 1989-11-21 |
| 4858144 | Detection of anomalies in gas fluidized bed polymerization | Alain Marsaly, Andre Martens, Frederic R. M. M. Morterol | 1989-08-15 |
| 4828145 | Pressure locked rotary trap chamber | — | 1989-05-09 |
| 4820463 | Process of degassing and pelletizing polyolefins | — | 1989-04-11 |