Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5592438 | Method and apparatus for communicating data in a wellbore and for detecting the influx of gas | Ashok Patel, James V. Leggett, III, Frank L. Gibbons, Steven C. Owens | 1997-01-07 |