Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5874918 | Doppler triangulation transmitter location system | Steven V. Czarnecki, James A. Johnson, Clifford M. Gray, Carl Gerst | 1999-02-23 |
| 5835060 | Self-resolving LBI triangulation | Steven V. Czarnecki, James A. Johnson, Clifford M. Gray, Carl Gerst | 1998-11-10 |