Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6656263 | Lightened cement slurries | Annie Audibert, Alain Rivereau | 2003-12-02 |
| 6562122 | Lightweight well cement compositions and methods | Bach Dao, Krishna M. Ravi, Jan Pieter Vijn, Alain Rivereau | 2003-05-13 |