Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878711 | Method and apparatus for mining of ocean floors | Odile Constant | 1989-11-07 |
| 4799549 | Gel-forming aqueous microemulsions for soil stabilization | Gerard Berrod, Jean-Louis Brun | 1989-01-24 |