Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5323857 | Process for enhancing oil recovery using scleroglucan powders | Rosangela Pirri, Alain Donche | 1994-06-28 |
| 5224988 | Process for improving the dispersibility and filterability of scleroglucan powders | Rosangela Pirri, Alain Donche | 1993-07-06 |
| 4637294 | Device for controlling the supply of fluid under pressure to a hydrauic circuit as a function of the state of locking of unlocking of two mechanical members | Christian Perichon | 1987-01-20 |