Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5608162 | Method and system of trajectory prediction and control using PDC bits | — | 1997-03-04 |
| 5560439 | Method and apparatus for reducing the vibration and whirling of drill bits and the bottom hole assembly in drilling used to drill oil and gas wells | Robert Delwiche | 1996-10-01 |
| 5465799 | System and method for precision downhole tool-face setting and survey measurement correction | — | 1995-11-14 |
| 5456141 | Method and system of trajectory prediction and control using PDC bits | — | 1995-10-10 |
| 5431046 | Compliance-based torque and drag monitoring system and method | — | 1995-07-11 |
| 5358059 | Apparatus and method for the dynamic measurement of a drill string employed in drilling | — | 1994-10-25 |
| 5044198 | Method of predicting the torque and drag in directional wells | — | 1991-09-03 |
| 4972703 | Method of predicting the torque and drag in directional wells | — | 1990-11-27 |
| 4848144 | Method of predicting the torque and drag in directional wells | — | 1989-07-18 |
| 4804051 | Method of predicting and controlling the drilling trajectory in directional wells | — | 1989-02-14 |
| 4662458 | Method and apparatus for bottom hole measurement | — | 1987-05-05 |