Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D393479 | Point of sale terminal | Harmut Droege, Ludwig Fischer, Wolfgang Fischer, Walter Hinz, Dieter Sonnentag | 1998-04-14 |
| D381675 | Point of sale terminal | Harmut Droege, Ludwig Fischer, Wolfgang Fischer, D. Walter Hinz, Dieter Sonnentag | 1997-07-29 |
| D379825 | Point of sale terminal | Hartmut Droege, Ludwig Fischer, Wolfgang Fischer, Walter Hinz, Dieter Sonnentag | 1997-06-10 |
| D372936 | Control unit with a printer | Harmut Droege, Ludwig Fischer, Wolfgang Fischer, Walter Hinz, Dieter Sonnentag | 1996-08-20 |