Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5988760 | Process for hollowing out a cavity formed of a plurality of sub-cavities in a thin layer of salt | Guy Boris, Yvon Charnavel | 1999-11-23 |
| 5957539 | Process for excavating a cavity in a thin salt layer | Guy Boris, Yvon Charnavel | 1999-09-28 |
| 5892148 | Method of leak testing an underground fluid-storage cavity | Benoit Guerber, Pierre Berest, Benoit Brouard, Jean Bergues | 1999-04-06 |