Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5703955 | Method and apparatus for multichannel sound reproduction | Peter Fels, Ulf Wustenhagen | 1997-12-30 |
| 4618987 | Large-area acoustic radiation system | Peter Fels, Wolfgang Hoeg, Werner Lorenz, Wolfgang Ahnert, Frank Steffen +1 more | 1986-10-21 |