Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6826273 | Method for preventing overload condition in a circuit switched arrangement | Vaidyanathan Ramaswami | 2004-11-30 |
| 6813716 | Secure calling card and authentication process | — | 2004-11-02 |
| 6731740 | Method for preventing overload condition in a circuit switched arrangement | Gagan Choudhury, Daniel Paul Heyman, Vaidyanathan Ramaswami | 2004-05-04 |
| 6725462 | Optimizing upstream transmission in a cable television distribution plant | — | 2004-04-20 |
| 6690358 | Display control for hand-held devices | — | 2004-02-10 |