Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4725992 | Adaptive seismometer group recorder having enhanced operating capabilities | Michael S. McNatt, Henry J. McKinley, Jr., Ralph E. Warmack | 1988-02-16 |
| 4663743 | Seismic data transcription system | Ralph E. Warmack | 1987-05-05 |