Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7976474 | Ear canal obstruction detecting acoustical stimulation ear probe | Andre Lodwig, Johann Oswald, Thomas Janssen | 2011-07-12 |
| 7922671 | Method and apparatus for automatic non-cooperative frequency specific assessment of hearing impairment and fitting of hearing aids | Thomas Janssen | 2011-04-12 |