Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4984642 | Composite tool comprising a polycrystalline diamond active part | Jean Sionnet | 1991-01-15 |
| 4944559 | Tool for a mine working machine comprising a diamond-charged abrasive component | Jean Sionnet | 1990-07-31 |