Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4638158 | Gamma ray measurement of earth formation properties using a position sensitive scintillation detector | Darrell S. Sonne | 1987-01-20 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4638158 | Gamma ray measurement of earth formation properties using a position sensitive scintillation detector | Darrell S. Sonne | 1987-01-20 |