Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7348905 | Device for treating audio signals, especially for treating audiophonatory disorders | Christophe Viala | 2008-03-25 |
| 5895220 | Audio frequency converter for audio-phonatory training | Boris Fradin | 1999-04-20 |
| 5573403 | Audio frequency converter for audio-phonatory training | Boris Fradin | 1996-11-12 |
| 4895519 | Audio-frequency converter apparatus, installation including said apparatus for treating subjects suffering from audio-phonatory and auditive-verbal disorders, and a method of using such an installation | Boris Fradin | 1990-01-23 |
| 4708657 | Audio-frequency converter apparatus, for treating subjects suffering from audio-phonatory and auditive-verbal disorders, and a method of using the apparatus | Boris Fradin | 1987-11-24 |