Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7864948 | Systems and methods for an electronic hook switch for customer premises equipment | Wai-Hung Leung | 2011-01-04 |
| 7103175 | Systems and methods for an electronic hook switch for customer premises equipment | Wai-Hung Leung | 2006-09-05 |