Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5661402 | Sealed modular downhole antenna | Dennis Patrick Chesnutt, Paul L. Sinclair | 1997-08-26 |
| 5535177 | MWD surface signal detector having enhanced acoustic detection means | Wilson C. Chin | 1996-07-09 |
| 5459697 | MWD surface signal detector having enhanced acoustic detection means | Wilson C. Chin | 1995-10-17 |