Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4891806 | Constellation multiplexed inband secondary channel for voiceband modem | Luis Farias, Chin Wong | 1990-01-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4891806 | Constellation multiplexed inband secondary channel for voiceband modem | Luis Farias, Chin Wong | 1990-01-02 |