Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5140785 | Multifunctional composite block for manual treatment of surfaces | — | 1992-08-25 |
| 4957810 | Synthetic sponge-type articles having excellent water retention | Michel Ramage, Gilles Rongier | 1990-09-18 |