Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8157002 | Slip ring apparatus for a rotary steerable tool | Mark J. Clarkson, Pralay Das, Hector R. Guzman | 2012-04-17 |
| 5892460 | Logging while drilling tool with azimuthal sensistivity | Roland E. Chemali | 1999-04-06 |
| 5774420 | Method and apparatus for retrieving logging data from a downhole logging tool | Dale R. Heysse | 1998-06-30 |