Dumain; Andre
Patent Applications and Registrations
Patent applications and USPTO patent grants for Dumain; Andre.The latest application filed is for "gas-phase alpha-olefin polymerization process in the presence of an activity retarder".
- Dumain; Andre - Martigues FR
| Patent | Date |
|---|---|
| Gas-phase alpha-olefin polymerization process in the presence of an activity retarder Grant 5,066,736 - Dumain , et al. November 19, 1 | 1991-11-19 |
| Process for the gas-phase polymerization of olefins in a fluidized-bed reactor Grant 5,028,670 - Chinh , et al. July 2, 1 | 1991-07-02 |
| Process for gas phase polymerization of olefins in a fluidized bed reactor Grant 4,882,400 - Dumain , et al. November 21, 1 | 1989-11-21 |
| Process for introducing a powder with catalytic activity into a fluidized-bed polymerization reactor Grant 4,774,299 - Dumain , et al. September 27, 1 | 1988-09-27 |
| Device for introducing a powder with catalytic activity into a fluidized-bed polymerization reactor Grant 4,687,381 - Dumain , et al. August 18, 1 | 1987-08-18 |
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