Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6801857 | Method and device for determining the quality of an oil well reserve | Damien Despax, Robert Dovis, Jean-Pierre Martin | 2004-10-05 |
| 6474151 | Instrument for soil surface analysis and use for analyzing the wall of a well in particular an oil well | Jean-Pierre Martin, Robert Dovis | 2002-11-05 |