Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5640442 | Technique for determining propagating and clear frequency to be used in wide area wireless data communications network | Brendan T. Fitzgerald, Andrew T. Powshok, Donald K. Belcher, Jeffrey R. White, Rodney D. Nelson | 1997-06-17 |
| 5627526 | Proximity detection using DPSK waveform | Donald K. Belcher, Lamar McBryde | 1997-05-06 |