Assignee
Inventors
- Volker Serini (40 patents)
- Dieter Freitag (181 patents)
- Uwe Westeppe (47 patents)
- Karsten-Josef Idel (101 patents)
- Ulrich Grigo (69 patents)
- Carl Casser (25 patents)
- Klaus-Christian Paetz (12 patents)
- Manfred Hajek (20 patents)
US Patent 5010163 · Granted Apr 23, 1991