Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4836280 | Method of evaluating subsurface fracturing operations | — | 1989-06-06 |
| 4828028 | Method for performing fracturing operations | — | 1989-05-09 |
| 4797821 | Method of analyzing naturally fractured reservoirs | Kevin R. Petak, Merlin F. Anderson | 1989-01-10 |