Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6233689 | Communication circuit having network connection detection capability | Charles M. Allen, Sui Ping Shieh, Robert Bruce Denmark | 2001-05-15 |
| 6000003 | Communication circuit having network connection detection capability | Charles M. Allen, Sui Ping Shieh, Robert Bruce Denmark | 1999-12-07 |
| 5799194 | Communication interface circuit having network connection detection capability | Charles M. Allen, Sui Ping Shieh | 1998-08-25 |