Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5347859 | Dynamometric measuring device for a drill pipe | Henri Henneuse, Jean-Luc Tanguy, Jean-Francois Lutz | 1994-09-20 |
| 5289354 | Method for acoustic transmission of drilling data from a well | Henry Henneuse, Jean Sancho | 1994-02-22 |