Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7813699 | Transceiver redundancy in an electronic toll collection system | Thua Van Ho, Daniel Terrier, Roger Shun Hong Tong, Japjeev Kohli | 2010-10-12 |
| 7463197 | Multi-band antenna | Gholamreza Rafi, Safieddin Safavi-Naeini, Sujeet K. Chaudhuri | 2008-12-09 |
| 7408480 | Dual mode electronic toll collection transponder | Henry Sun Yee Woo, Paul Manuel, Weimin He, Daniel Terrier, Roger Shun Hong Tong | 2008-08-05 |
| 7388501 | Method of enabling two-state operation of electronic toll collection system | Thua Van Ho | 2008-06-17 |
| 7342500 | Compact microstrip transponder antenna | Thua Van Ho | 2008-03-11 |
| 7262711 | External indicator for electronic toll communications | Jeffrey Zhu | 2007-08-28 |
| 7233260 | Electronic toll collection system | Thua Van Ho | 2007-06-19 |
| 7183976 | Compact inverted-F antenna | Ke-Li Wu, Yong Huang | 2007-02-27 |
| 6882251 | Microwave filter with adaptive predistortion | Ming Yu, Van Dokas | 2005-04-19 |
| 5608363 | Folded single mode dielectric resonator filter with cross couplings between non-sequential adjacent resonators and cross diagonal couplings between non-sequential contiguous resonators | Richard J. Cameron, Van Dokas | 1997-03-04 |
| 5589807 | Multi-mode temperature compensated filters and a method of constructing and compensating therefor | — | 1996-12-31 |
| 4881051 | Dielectric image-resonator multiplexer | Richard J. Cameron, David Bryant | 1989-11-14 |
| 4675630 | Triple mode dielectric loaded bandpass filter | David Siu, Bruce C. Beggs, Joseph Sferrazza | 1987-06-23 |
| 4652843 | Planar dual-mode cavity filters including dielectric resonators | David Siu, Bruce C. Beggs, Joseph Sferrazza | 1987-03-24 |
| 4644305 | Odd order elliptic waveguide cavity filters | Joseph Frenna, David Siu | 1987-02-17 |
| 4630009 | Cascade waveguide triple-mode filters useable as a group delay equalizer | — | 1986-12-16 |
| 4622523 | Group delay equalizers using short circuit triple mode filters | — | 1986-11-11 |
| 4513264 | Bandpass filter with plurality of wave-guide cavities | James B. Dorey | 1985-04-23 |