Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4393350 | Method for rapidly detecting subterranean tunnels by detecting a non-null value of a resultant horizontal magnetic field component | Peder M. Hansen, Elwin W. Seeley, Wesley A. Andrew | 1983-07-12 |
| 4330784 | Variable waveguide continuous slot antenna | Gaylon E. Ryno | 1982-05-18 |
| 4290020 | Method and apparatus for detecting subterranean anomalies by generating two parallel magnetic fields | Peder M. Hansen, Elwin W. Seeley, Wesley A. Andrew | 1981-09-15 |