Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11041107 | Rheological agent, preparation methods and uses thereof | Cécile Mazard, Sophie Drillieres, Aurélie Barette, Bertrand Guichard | 2021-06-22 |
| 7449430 | Fluid loss reducer for high temperature high pressure water based-mud application | Bertrand Guichard, Barry Wood | 2008-11-11 |
| 7256159 | Fluid loss reducer for high temperature high pressure water based-mud application | Bertrand Guichard, Barry Wood | 2007-08-14 |
| 7101829 | Fluid loss reducer for high temperature and high pressure water-based mud application | Bertrand Guichard, Barry Wood | 2006-09-05 |