Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4616320 | Seismic strong-motion recorder | Howard J. Thompson | 1986-10-07 |
| 4473768 | Piezoelectric force-balance accelerometer system | Howard J. Thompson | 1984-09-25 |
| 4188612 | Piezoelectric seismometer | — | 1980-02-12 |