Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12334806 | Hybrid power conversion system and control method | Rui Liu, Songnan Yang | 2025-06-17 |
| 11817770 | Hybrid power conversion system and control method | Rui Liu, Songnan Yang | 2023-11-14 |
| 11539296 | Hybrid power conversion system and control method | Songnan Yang | 2022-12-27 |
| 11451151 | Hybrid power conversion system and control method | — | 2022-09-20 |
| 6363033 | Method and apparatus for transmit beamformer system | Christopher R. Cole, Albert Gee | 2002-03-26 |
| 6338099 | Device code recognizing circuit | — | 2002-01-08 |
| 6172939 | Method and apparatus for transmit beamformer system | Christopher R. Cole, Albert Gee | 2001-01-09 |
| 6104673 | Method and apparatus for transmit beamformer system | Christopher R. Cole, Albert Gee | 2000-08-15 |
| 5995450 | Method and apparatus for transmit beamformer system | Christopher R. Cole, Albert Gee | 1999-11-30 |
| 5675554 | Method and apparatus for transmit beamformer | Christopher R. Cole, Albert Gee | 1997-10-07 |
| 4685123 | Communication system having voice and data capability | Richard Y. Hsia | 1987-08-04 |
| 4646347 | Ringing signal reformatting circuit | — | 1987-02-24 |