Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5534868 | Method and system for the detection and measurement of air phenomena and transmitter and receiver for use in the system | Jens Hjelmstad | 1996-07-09 |
| 4992797 | Method of detection and identification of one or more remote objects | Jens Hjelmstad | 1991-02-12 |
| 4843597 | System for marine seismic exploration | Jens Hjelmstad, Andreas Tonning | 1989-06-27 |
| 4829306 | System for detection of objects with given, known characteristics against a background | Jens Hjelmstad | 1989-05-09 |