Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861480 | Organomineral semipermeable membrane and its production process | Michel Berardo, Charles Darnez, Jean-Marie Martinet | 1989-08-29 |
GR
Gilbert Roche
Overall (1989): #110,570 of 140,708Top 80%
1
Patents 1989