Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4968934 | Magnetic marking apparatus for magnetically measuring displacement of a moveable element in a well | Bernard Jacquet | 1990-11-06 |
| 4938077 | Device to measure a large range of fluid flow | — | 1990-07-03 |
| 4937558 | Flow failure detector | Didier Thomas | 1990-06-26 |
| 4389880 | Rapidly erodible sonde | — | 1983-06-28 |