Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7521927 | Magnetic induction switching circuits and methods | Ching Hsieng Lee | 2009-04-21 |
| 7242187 | Hall effect switching circuit and apparatus and method using the same | Ching Hsieng Lee | 2007-07-10 |