Assignee
Inventors
- Hans Pircher (14 patents)
- Rudolf Kawalla (16 patents)
- Manfred Espenhahn (8 patents)
- Andreas Böttcher (40 patents)
- Klaus Gunther (18 patents)
- Hans Huneus (1 patents)
- Carl-Dieter Wuppermann (7 patents)
US Patent 6524400 · Granted Feb 25, 2003