Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5714076 | Process for preventing the formation of black spots on the walls of underground water reservoirs | — | 1998-02-03 |
| 5006377 | Impermeable membrane resistant to chemical agents and impermeable enclosure produced using such membranes | Michel Delcorps | 1991-04-09 |