Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6259404 | Position location system and method | Steen A. Parl, Jay Weitzen, James M. Zagami | 2001-07-10 |
| 5883598 | Position location system and method | Steen A. Parl, Jay Weitzen, James M. Zagami | 1999-03-16 |
| 5278568 | Method of and apparatus for two-way radio communication amongst fixed base and mobile terminal users employing meteor scatter signals for communications inbound from the mobile terminals and outbound from the base terminals via Loran communication signals | Per K. Enge, Paul R. Johannessen | 1994-01-11 |
| 4468804 | Speech enhancement techniques | James M. Kates | 1984-08-28 |