Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6766007 | Method, apparatus, and communication system for setting up a communication session | Claudio Fleiner, Marcel Graf, Lukas Heusler, Hong Linh Truong | 2004-07-20 |
| 6700967 | Presence information method and system | Wolfgang B. Kleinöder, Hong Linh Truong, Lucas Heusler, Yann Duponchel, Marcel Graf | 2004-03-02 |