Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7813699 | Transceiver redundancy in an electronic toll collection system | Daniel Terrier, Roger Shun Hong Tong, Wai-Cheung Tang, Japjeev Kohli | 2010-10-12 |
| 7479896 | Adaptive channel bandwidth in an electronic toll collection system | Daniel Terrier | 2009-01-20 |
| 7388501 | Method of enabling two-state operation of electronic toll collection system | Wai-Cheung Tang | 2008-06-17 |
| 7385525 | Dynamic timing adjustment in an electronic toll collection system | Roger Shun Hong Tong, Wal-Cheung Tang, Daniel Terrier, Martin Capper | 2008-06-10 |
| 7342500 | Compact microstrip transponder antenna | Wai-Cheung Tang | 2008-03-11 |
| 7233260 | Electronic toll collection system | Wai-Cheung Tang | 2007-06-19 |
| 6661352 | Method and means for RF toll collection | Robert W. Tiernay, Weimin He, James Kenneth Cook, Mohammed Benvidi | 2003-12-09 |
| 6025799 | Short range position locating system for transponder | Robert W. Tiernay | 2000-02-15 |