Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4618782 | Transistor power amplifier having reduced switching times | Albrecht Lang | 1986-10-21 |
| 4514667 | Method and apparatus for the constant speed control of brushless DC motors | Volker Zimmermann | 1985-04-30 |
| 4425846 | Type band and band printer with automatic print band recognition | — | 1984-01-17 |
| 4193703 | Matrix printer with piezoelectrically driven printing needles | — | 1980-03-18 |