Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7974650 | Interoperability between different types of wireless networks for push to talk group calls | Sharmin Chowdhury, Thomas P. Chu, Bryan Kadel, Ping Z. Perzentka | 2011-07-05 |
| 7774012 | Method for RTP setup coordination for talk groups when interconnecting public safety wireless networks and commercial wireless networks | Sharmin Chowdhury, Thomas P. Chu, Bryan Kadel, Ping Z. Perzentka | 2010-08-10 |
| 7764971 | Control procedure for simultaneous media communications within a talk group in communication networks for public safety | Thomas P. Chu, Michelle T. Emanuel | 2010-07-27 |
| 4206422 | Gas laser | Michael E. Fein | 1980-06-03 |