Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8447522 | Method for estimating the probability of collision between wells | — | 2013-05-21 |
| 8280638 | Multi-station analysis of magnetic surveys | — | 2012-10-02 |
| 7503403 | Method and apparatus for enhancing directional accuracy and control using bottomhole assembly bending measurements | Pushkar N. Jogi, Michael Neubert, John D. Macpherson, James A. Hood, Thomas Dahl +2 more | 2009-03-17 |
| 7375530 | Method for signal enhancement in azimuthal propagation resistivity while drilling | Roland E. Chemali, Paul Cairns, Tsili Wang, Wallace H. Meyer, Otto N. Fanini +1 more | 2008-05-20 |
| 6508316 | Apparatus to measure the earth's local gravity and magnetic field in conjunction with global positioning attitude determination | Robert A. Estes, Hatem Salem Morsy | 2003-01-21 |
| 6179067 | Method for magnetic survey calibration and estimation of uncertainty | — | 2001-01-30 |
| 6097310 | Method and apparatus for mud pulse telemetry in underbalanced drilling systems | John W. Harrell, Hatem Salem Morsy | 2000-08-01 |
| 6088294 | Drilling system with an acoustic measurement-while-driving system for determining parameters of interest and controlling the drilling direction | James V. Leggett, III, Vladimir Dubinsky, John W. Harrell, William Thomas Balogh, Paul Seaton +1 more | 2000-07-11 |
| 5869968 | Method and apparatus for avoiding mutual coupling between receivers in measurement while drilling | MacMillian M. Wisler, Larry W. Thompson, Jian-Qun Wu, Wallace H. Meyer, John W. Harrell | 1999-02-09 |
| 5623407 | Method of correcting axial and transverse error components in magnetometer readings during wellbore survey operations | — | 1997-04-22 |
| 5564193 | Method of correcting for axial and transverse error components in magnetometer readings during wellbore survey operations | — | 1996-10-15 |