Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6486975 | Method and device for recognizing tones and sequences thereof | John C. Fischer | 2002-11-26 |
| 6434169 | Voiceband/modem signal relay | — | 2002-08-13 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6486975 | Method and device for recognizing tones and sequences thereof | John C. Fischer | 2002-11-26 |
| 6434169 | Voiceband/modem signal relay | — | 2002-08-13 |