Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7000714 | Head for injecting a fluid under pressure to break up ground from a borehole | Jean-Claude Gessay, Fabrice Mathieu | 2006-02-21 |
| 6648084 | Head for injecting liquid under pressure to excavate the ground | Jean-Claude Gessay | 2003-11-18 |