Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5592381 | Device for processing and interpreting drilling data, placed at the bottom of a well and method implementing this device | Elyes Draoui | 1997-01-07 |
| 5493288 | System for multidirectional information transmission between at least two units of a drilling assembly | — | 1996-02-20 |
| 5365674 | Device for measuring the displacement of a swivel of a drilling mast | Didier Etchegoyhen | 1994-11-22 |
| 5289354 | Method for acoustic transmission of drilling data from a well | Frederic Clayer, Jean Sancho | 1994-02-22 |
| 5273122 | Automatic method for monitoring the vibrational state of a drill string | — | 1993-12-28 |
| 5272925 | Motorized rotary swivel equipped with a dynamometric measuring unit | Denis Becq | 1993-12-28 |
| 5245871 | Process for controlling a drilling operation | Jean Sancho | 1993-09-21 |
| 5144298 | Dynamometric measuring assembly for a drill pipe equipped with means of radiotransmission | — | 1992-09-01 |
| 5141061 | Method and equipment for drilling control by vibration analysis | — | 1992-08-25 |