Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5243337 | Process and device for optimizing signal transmission rates on multifunctional well cables | Claude Beauducel, Jacques Cretin | 1993-09-07 |
| 4862425 | Device for acquiring seismic data in a borehole and transmission thereof to a central control and recording system | Jacques Cretin, Jean-Francois Therond | 1989-08-29 |
| 4855732 | System for the transmission of signals between a reception assembly lowered into a well and a central control and recording laboratory | Jacques Cretin | 1989-08-08 |