Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6401843 | Drilling head with a cone rock bit | Alain Besson, Patrick Fayaud, Bernard Tissier | 2002-06-11 |
| 6102142 | Drilling tool with shock absorbers | Alain Besson, Robert Delwiche | 2000-08-15 |
| 4688776 | Hydroelastic suspension device for mobile self-lift drilling platforms | Gergely Korbuly | 1987-08-25 |