Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6661197 | Wireless battery charging system for existing hearing aids using a dynamic battery and a charging processor unit | Uwe Zink | 2003-12-09 |
| 6636017 | Wireless battery charging system for existing hearing aids using a dynamic battery and a charging processor unit | Uwe Zink | 2003-10-21 |