Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876886 | Method for detecting drilling events from measurement while drilling sensors | Matthew Bible, Marc Lesage | 1989-10-31 |
| 4852399 | Method for determining drilling conditions while drilling | — | 1989-08-01 |