Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6473511 | Disposable hearing aid with integral power source | John G. Aceti, Walter P. Sjursen, Derek Mahoney, Fredrick Fritz | 2002-10-29 |
| 6415790 | Dry powder delivery system apparatus | Allan E. White | 2002-07-09 |
| 6410997 | Power source for a hearing aid | Walter P. Sjursen, Gary John Hollingsworth, Derek Mahoney | 2002-06-25 |
| 6389143 | Modular electroacoustic instrument | Walter P. Sjursen | 2002-05-14 |