Assignee
Inventors
- Klaus Schwerdtfeger (8 patents)
- Karl-Heinz Spitzer (25 patents)
- Ulrich Urlau (21 patents)
- Dietmar Franke (19 patents)
- Bernfried Stache (2 patents)
- Joachim Kroos (11 patents)
- Heino Buddenberg (4 patents)
US Patent 6192973 · Granted Feb 27, 2001