Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4435685 | Amplifier arrangement | Wolfgang Eckert, Ernst A. Kilian | 1984-03-06 | $409,000 |
| 4371841 | Circuit arrangement for eliminating turn-on and turn-off clicks in an amplifier | Wolfgang Eckert, Ernst A. Kilian | 1983-02-01 | $434,000 |