Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7929721 | Hearing aid with directional microphone system, and method for operating a hearing aid | Hartmut Ritter | 2011-04-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7929721 | Hearing aid with directional microphone system, and method for operating a hearing aid | Hartmut Ritter | 2011-04-19 |