Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5798153 | Linking device for composite rods | Michel Chardin | 1998-08-25 |
| 5505259 | Measuring device and method in a hydrocarbon production well | Christian Wittrisch | 1996-04-09 |
| 5348084 | Device for carrying out measuring and servicing operations in a well bore and use in an oil well | Michel Huvey | 1994-09-20 |
| 5348097 | Device for carrying out measuring and servicing operations in a well bore, comprising tubing having a rod centered therein, process for assembling the device and use of the device in an oil well | Jean-Francois Giannesini | 1994-09-20 |
| 5310012 | Actuating device associated with a drill string and comprising a hydrostatic drilling fluid circuit, actuation method and application thereof | Andre Cendre, Benoit Amaudric du Chaffaut | 1994-05-10 |