Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861480 | Organomineral semipermeable membrane and its production process | Charles Darnez, Jean-Marie Martinet, Gilbert Roche | 1989-08-29 |
| 4738874 | Process for the production of porous, permeable mineral membranes | Jean Charpin, Jean-Marie Martinet | 1988-04-19 |