Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5680899 | Electronic wellhead apparatus for measuring properties of multiphase flow | Weldon J. Ginzel, Jr. | 1997-10-28 |
| 5644076 | Wireline formation tester supercharge correction method | Mark A. Proett, Wilson C. Chin | 1997-07-01 |
| 5602334 | Wireline formation testing for low permeability formations utilizing pressure transients | Mark A. Proett | 1997-02-11 |