Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7619540 | Apparatus and methods for determining isotropic and anisotropic formation resistivity in the presence of invasion | Stephen D. Bonner, Gerald M. Minerbo, Richard A. Rosthal, Kuo-Chiang Chen | 2009-11-17 |