Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6545477 | Method and apparatus for determining the resistivity of a formation through which a cased well passes | Paul Beguin, Dominique Benimeli, Francois Hecquet, Peter van der Wal, Marie-Therese Gounot | 2003-04-08 | $88,619,000 |