Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6473511 | Disposable hearing aid with integral power source | Walter P. Sjursen, Marvin Allan Leedom, Derek Mahoney, Fredrick Fritz | 2002-10-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6473511 | Disposable hearing aid with integral power source | Walter P. Sjursen, Marvin Allan Leedom, Derek Mahoney, Fredrick Fritz | 2002-10-29 |