Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5053727 | Circuit coupling an oscillator to an electrical load | Kurt Rottner | 1991-10-01 |
| 5014130 | Signal level control circuit having alternately switched capacitors in the feedback branch | Heinz Heister | 1991-05-07 |
| 4672652 | Radiodiagnostic apparatus with semitransparent diaphragm | Gerd Huttenrauch, Feliks Kranvogel | 1987-06-09 |