Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5748425 | Electrostatic discharge circuit layout | Henrik Gutsch, Horst Hafner, Hermann Hammel, Friedemann Schmidt | 1998-05-05 |
| 5565810 | Switch with a first switching element in the form of a bipolar transistor | Hermann Hammel, Horst Hafner, Henrik Gutsch | 1996-10-15 |
| 5515431 | Speakerphone device with auxiliary circuit for eliminating clicking at power-on | Joachim Kuhnle, Wolfgang Roper | 1996-05-07 |
| 5021750 | CMOS oscillator | — | 1991-06-04 |
| 4779849 | Gas washing device with reduced gas flow upon wear of gas sink | Hans Rothfuss | 1988-10-25 |
| 4566925 | Method of mounting a metal band about a cover plate | Jurgen Plath | 1986-01-28 |