Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5694430 | Subscriber unit for wireless digital subscriber communication system | David N. Critchlow, Moshe Yehushua, Graham M. Avis, Wade L. Heimbigner, George Alan Wiley | 1997-12-02 |
| 5644602 | Direct digital frequency synthesizer for use in a subscriber unit of a wireless digital communication system | David N. Critchlow | 1997-07-01 |