Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6643364 | Providing telephony services | — | 2003-11-04 |
| 6550008 | Protection of information transmitted over communications channels | Minda Zhang | 2003-04-15 |
| 6516414 | Secure communication over a link | Minda Zhang | 2003-02-04 |
| 6507907 | Protecting information in a system | Minda Zhang | 2003-01-14 |