Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4659476 | Method for the treatment of liquids on granular materials | Bernard Causse, Jean-Marie Rovel | 1987-04-21 |
| 4269715 | Process and apparatus for treating by ion exchange or adsorption fluids having solid particles suspended therein | Christian Barraque, Jean-Marie Rovel | 1981-05-26 |