Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5260941 | Digital radio telephone system | Gregory Pierce, Richard C. Frey, Whitney E. Childs-Goodrich, David L. Needle | 1993-11-09 |
| 5128928 | Digital radio telephone system | Gregory Pierce, Richard C. Frey, Whitney E. Childs-Goodrich, David L. Needle | 1992-07-07 |