Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4942062 | Process for producing boron carbide coatings of controlled hardness | Michel R. Ducarroir, Germain J. Male, Marcel F. Nadal, Gerard Pizzini, Didier Cazajous | 1990-07-17 |
| 4913232 | Method of isolating production zones in a well, and apparatus for implementing the method | Andre Cheymol, Francois C. Gueuret, Gilbert Blu | 1990-04-03 |