Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11686615 | Light to frequency modulators | — | 2023-06-27 |
| 6370257 | Apparatus including an electroacoustic transducer having terminal contacts which extend in the direction of the transducer axis and including a printed circuit board having mating contacts | Ewald Frasl, Erich Klein, Ernst Ruberl | 2002-04-09 |
| 6038327 | Electroacoustic transducer comprising a closing member for closing the rear volume of the transducer | Ewald Frasl, Erich Klein, Ernst Ruberl | 2000-03-14 |
| 5524151 | Electroacoustic transducer having a mask | — | 1996-06-04 |