Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9807511 | Speaker with a coil stabilizer and method for manufacturing the same | Michael Schoeffmann, Christian Haas | 2017-10-31 |
| 9635455 | Speaker with grained zeolite material in deep-drawn foil resonance volume | Michael Schoffmann, Josef Herold, Mark Hannah | 2017-04-25 |