Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5703286 | Method of formation testing | Mark A. Proett, Chih-Chang Chen | 1997-12-30 |
| 5672819 | Formation evaluation using phase shift periodic pressure pulse testing | Mark A. Proett | 1997-09-30 |
| 5644076 | Wireline formation tester supercharge correction method | Mark A. Proett, Margaret C. Waid | 1997-07-01 |