Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11431320 | Even-mode resonator filter with high stability | Chih-Ming Chang | 2022-08-30 |
| 11303260 | Coupled resonator filter with high quality factor | Chih-Ming Chang | 2022-04-12 |
| 9905901 | Miniature directional coupling device | Jhin-Ying Lyu, Wei-Jen Lee | 2018-02-27 |
| 9748653 | Multilayer chip antenna | Wei-Ren Yang, Wei-Jen Lee | 2017-08-29 |
| 6677833 | Multilayered band separator with grounding parasitic capacitor | — | 2004-01-13 |
| 6459413 | Multi-frequency band antenna | Wen-Jen Tseng | 2002-10-01 |
| 6404390 | Wideband microstrip leaky-wave antenna and its feeding system | — | 2002-06-11 |
| 6396460 | Chip antenna | Wen-Jen Tseng, Jian-Hong Chen | 2002-05-28 |
| 6351192 | Miniaturized balun transformer with a plurality of interconnecting bondwires | — | 2002-02-26 |
| 6340951 | Wideband microstrip leaky-wave antenna | — | 2002-01-22 |
| 6191666 | Miniaturized multi-layer ceramic lowpass filter | — | 2001-02-20 |
| 6133806 | Miniaturized balun transformer | — | 2000-10-17 |
| 6091312 | Semi-lumped bandstop filter | — | 2000-07-18 |
| 6064281 | Semi-lumped bandpass filter | — | 2000-05-16 |