Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4782478 | Time division circuit switch | Chester M. Day, Jr., James N. Giacopelli, Liang Wu | 1988-11-01 |
| 4665514 | Integrated voice/data network | Yau-Chau Ching, James Tomcik | 1987-05-12 |