Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10594291 | Branch-line coupler | Zhengxiang Ma | 2020-03-17 |
| 9979371 | Elliptic directional filters for a combiner circuit | Zhengxiang Ma | 2018-05-22 |
| 9979447 | Radio frequency distribution network for a split beam user specific tilt antenna | Zhengxiang Ma, Leonard Piazzi | 2018-05-22 |
| 9548529 | Integrated duplexer and combiner | Zhengxiang Ma | 2017-01-17 |