Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6875167 | Apparatus for generating brain wave-inducing signals and network system including the same | — | 2005-04-05 | |
| 5818250 | Apparatus and method for determining the speed of a semiconductor chip | Norman K. Yeung, Edward T. Pak, Chia-Chi Chao | 1998-10-06 | $3,245,000 |