Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840178 | Magnet for installation in the middle ear | Jorgen Heide, Anthony D. Prescott, Dennis Bojrab | 1989-06-20 |
| 4800884 | Magnetic induction hearing aid | Jorgan Heide, Anthony D. Prescott, Thomas Sander, Jim Davidson, Eric A. Renz | 1989-01-31 |