Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4922880 | Fuel injector for internal combustion engines | Artur Seibt, Heinrich Maly, Gottfried Haider | 1990-05-08 |
| 4796117 | Recording and/or reproducing apparatus | — | 1989-01-03 |
| 4722239 | Gear mechanism | Leopold Mader, Norbert C. Vollmann | 1988-02-02 |
| 4654730 | Tape cassette apparatus with helical spring cassette holder drive | Heinrich Hutter, Heimo Jager | 1987-03-31 |
| 4563717 | Helical scan cassette recorder with improved tape threading | Johannes C. A. Muller, Heinrich Hutter | 1986-01-07 |
| 4479157 | Mounting for a head drum of a helical scan recorder | Petrus J. J. Aarts, Karl Kocsisek | 1984-10-23 |
| 4395745 | Head-drum mounting for a helical scan tape recorder | Petrus J. J. Aarts, Karl Kocsisek, Ernst M. Schmidt | 1983-07-26 |