Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4972488 | Ear wax barrier and acoustic attenuator for a hearing aid | Mark F. Stanton | 1990-11-20 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4972488 | Ear wax barrier and acoustic attenuator for a hearing aid | Mark F. Stanton | 1990-11-20 |