Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE42347 | Solid state silicon-based condenser microphone | Pirmin Hermann Otto Rombach, Matthias Mullenborn, Ole Hansen, Matthias Heschel, Siebe Bouwstra +1 more | 2011-05-10 |
| 6088463 | Solid state silicon-based condenser microphone | Pirmin Hermann Otto Rombach, Matthias Mullenborn, Ole Hansen, Matthias Heschel, Siebe Bouwstra +1 more | 2000-07-11 |