Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6332507 | Seismic prospecting method and device in wells allowing guided waves filtering | Charles Naville, Jean Laurent, Guy Pignard | 2001-12-25 |
| 5248857 | Apparatus for the acquisition of a seismic signal transmitted by a rotating drill bit | — | 1993-09-28 |
| 4773501 | Device for generating seismic impulses inside a drilling through the fall of a weight onto an anchored target element | Pascal Dedole, Jean Laurent | 1988-09-27 |
| 4594704 | Spare subscriber terminal device in a digital concentrator | — | 1986-06-10 |