Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4816674 | Determining a formation porosity from neutron logging information | Darwin V. Ellis, Hubert D. Scott | 1989-03-28 |
| 4794792 | Method for determining formation characteristics with enhanced vertical resolution | James E. Galford, Steven W. Ducket | 1989-01-03 |