Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6753583 | Electrostatic electroacoustical transducer | Axel Stoffel | 2004-06-22 |
| 6249586 | Slot microphone | Axel Stoffel | 2001-06-19 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6753583 | Electrostatic electroacoustical transducer | Axel Stoffel | 2004-06-22 |
| 6249586 | Slot microphone | Axel Stoffel | 2001-06-19 |