Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5551286 | Determination of drill bit rate of penetration from surface measurements | — | 1996-09-03 |
| 5323648 | Formation evaluation tool | Bertrand Peltier, Emmanuel Detournay | 1994-06-28 |
| 5138875 | Method of monitoring the drilling of a borehole | — | 1992-08-18 |
| 5043952 | Monopole transmitter for a sonic well tool | David C. Hoyle, Albert H. Wignall, Jeffrey B. Aron | 1991-08-27 |