Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8947265 | Signal timing coordination system for crosswalk beacons | Darren Beckwith | 2015-02-03 |
| 8457614 | Wireless multi-unit conference phone | Li Hing Kwok, Oliver Ren, Pichet Ong | 2013-06-04 |
| 6625281 | Method for extending the useful life of a cordless telephone backup battery during a power outage condition | — | 2003-09-23 |