Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10587956 | Membrane for a loud speaker | Andreas Hintennach | 2020-03-10 |
| 9986339 | Stiffening plate for acoustic membrane and method of manufacturing same | Christian Lembacher, Hüdaverdi Ergül, Murat Polat | 2018-05-29 |
| 9769583 | Vibration membrane assembly for speaker, speaker and method for producing the assembly | Gary Hsieh, Christian Lembacher, Ewald Frasl, Bernhard Seiwald, Peter Fischer | 2017-09-19 |