Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861480 | Organomineral semipermeable membrane and its production process | Charles Darnez, Jean-Marie Martinet, Gilbert Roche | 1989-08-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861480 | Organomineral semipermeable membrane and its production process | Charles Darnez, Jean-Marie Martinet, Gilbert Roche | 1989-08-29 |