Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5363425 | Method and apparatus for providing a personal locator, access control and asset tracking service using an in-building telephone network | Sohale Aziz Mufti, Robert Samuel, Peter P. K. Soong, Adrian M. Yip | 1994-11-08 |
| 4847900 | Infrared hookswitch for a telephone | — | 1989-07-11 |