Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4973839 | Method and apparatus for epithermal neutron decay logging | — | 1990-11-27 |
| 4972082 | Methods and apparatus for epithermal neutron logging | William A. Loomis, David J. Le Poire | 1990-11-20 |
| 4507554 | Method and apparatus for determining borehole and formation constituents | Russel C. Hertzog | 1985-03-26 |
| 4317993 | Methods and apparatus for constituent analysis of earth formations | Russel C. Hertzog | 1982-03-02 |