Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5982164 | Doppler triangulation transmitter location system | James A. Johnson, Carl Gerst | 1999-11-09 |
| 5874918 | Doppler triangulation transmitter location system | James A. Johnson, Clifford M. Gray, George VerWys, Carl Gerst | 1999-02-23 |
| 5835060 | Self-resolving LBI triangulation | James A. Johnson, Clifford M. Gray, George VerWys, Carl Gerst | 1998-11-10 |
| 5604503 | Multipath and co-channel signal preprocessor | Mark Fowler | 1997-02-18 |