| 1589 | Device, Anti-stammering | Antistammering Device. |
| 1589 | Device, Anti-stammering | Antistammering Device. |
| K962961 | SUSTAINED PHONATION | SURFACE MOUNT TECHNOLOGY, INC. |
| K942651 | BIOFEEDBACK SYSTEM FOR SPEECH DISORDERS | CASA FUTURA TECHNOLOGIES |
| K871590 | VOCALTECH VOCAL FEEDBACK DEVICE | VOCALTECH C/O HOGAN & HARTSON |
| K800445 | EDINBURGH MASKER | FOUNDATION FOR FLUENCY, INC. |
| 05070003548507 | Device, Anti-Stammering |