Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4817059 | Borehole logging methods for detection and imaging of formation structural features | Brian E. Hornby | 1989-03-28 |
| 4809236 | Method and apparatus for determining the magnitude of components of measurements made from inside a borehole | Kai Hsu | 1989-02-28 |