Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5119345 | Geophone | Daniel M. Woo | 1992-06-02 |
| 4811311 | Seismic detector assembly having polarized terminals | S. E. Haggard | 1989-03-07 |
| 4809245 | Seismic detector housing assembly | S. E. Haggard | 1989-02-28 |
| 4525814 | Leakage testing cable connector network | — | 1985-06-25 |
| 4438292 | Waterproof housing assembly for geophones | — | 1984-03-20 |