Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8213640 | Hearing device for musicians | Josef Chalupper, Reinier Kortekaas | 2012-07-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8213640 | Hearing device for musicians | Josef Chalupper, Reinier Kortekaas | 2012-07-03 |