Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5787183 | Microphone system for teleconferencing system | Peter L. Chu | 1998-07-28 |
| 5664021 | Microphone system for teleconferencing system | Peter L. Chu | 1997-09-02 |
| D261996 | Levelling device | — | 1981-11-24 |