Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5612294 | Scleroglucan based drilling mud | Alain Vaussard, Alain Ladret | 1997-03-18 |
| 5525587 | Application of muds containing scleroglucan to drilling large diameter wells | Alain Ladret | 1996-06-11 |
| 5330015 | Application of scleroglucan muds to drilling deviated wells | Alain Vaussard, Patrick Isambourg | 1994-07-19 |
| 5323857 | Process for enhancing oil recovery using scleroglucan powders | Rosangela Pirri, Yves Huet | 1994-06-28 |
| 5306340 | Scleroglucan-based compositions and their use as a cementation spacer | Patrick Isambourg | 1994-04-26 |
| 5224988 | Process for improving the dispersibility and filterability of scleroglucan powders | Rosangela Pirri, Yves Huet | 1993-07-06 |