Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4968940 | Well logging apparatus and method using two spaced apart transmitters with two receivers located between the transmitters | Brian Clark, Martin G. Luling, Michael O. Ross | 1990-11-06 |
| 4949045 | Well logging apparatus having a cylindrical housing with antennas formed in recesses and covered with a waterproof rubber layer | Brian Clark, Martin G. Luling, Michael O. Ross | 1990-08-14 |
| 4899112 | Well logging apparatus and method for determining formation resistivity at a shallow and a deep depth | Brian Clark, Martin G. Luling, Michael O. Ross | 1990-02-06 |