Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6993140 | 3-in-1 anti-noise radio sound-collection device | — | 2006-01-31 |
| 6590982 | Wireless stereo center speaker system | — | 2003-07-08 |
| RE37884 | Transmitter-receiver system for use in an audio equipment | — | 2002-10-15 |
| 5974304 | Small radio transmitter receiver system | — | 1999-10-26 |
| 5722050 | Transmitter-receiver system for use in an audio equipment | — | 1998-02-24 |