Assignee
Inventors
- Rudolf Kawalla (16 patents)
- Hans Pircher (14 patents)
- Karl Ernst Friedrich (6 patents)
- Brigitte Hammer (9 patents)
- Jürgen Schneider (71 patents)
- Olaf Fischer (8 patents)
- Carl-Dieter Wuppermann (7 patents)
US Patent 6773514 · Granted Aug 10, 2004