Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5152896 | Use of grafted cellulose for purifying water | Michel Mazet, Isabelle Rigaudie, Daniel Wattiez, Roger Chatelin, Louis Gavet | 1992-10-06 |
| 4627920 | Process for the retention of a substance dissolved in a solution | Roger Chatelin, Daniel Wattiez | 1986-12-09 |