Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5162732 | He.sup.3 solenoid magnetometer | Forrest D. Colegrove, Douglas D. McGregor | 1992-11-10 |
| 4814707 | Scalar magnetometer with vector capabilities | — | 1989-03-21 |
| 4697519 | Smart mine | Joseph Allen Rice, Douglas D. McGregor, Forrest D. Colegrove | 1987-10-06 |