Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7376240 | Coil for an electroacoustic transducer | Leif Johannsen | 2008-05-20 |
| 7062063 | Electroacoustic transducer | Leif Johannsen | 2006-06-13 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7376240 | Coil for an electroacoustic transducer | Leif Johannsen | 2008-05-20 |
| 7062063 | Electroacoustic transducer | Leif Johannsen | 2006-06-13 |