Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5396232 | Transmitter device with two insulating couplings for use in a borehole | Yves Mathieu, Didier Fouillou, Jean Revel | 1995-03-07 |
| 5353877 | Electrically controlled latch for well applications | Ting M. Lau | 1994-10-11 |
| 5198770 | Logging apparatus having a wall engaging pad with longitudinally aligned detecting devices | Alain Dumont, Alan J. Sallwasser | 1993-03-30 |
| 4575831 | Method and apparatus for acquiring seismic signals in a borehole | Alain G. M. Delpuech | 1986-03-11 |
| 4563757 | Method and apparatus for acquiring seismic signals in a borehole | Guy Blanpain | 1986-01-07 |