Assignee
Inventors
- Hendrik Helmke (25 patents)
- Michael Gerhard Hoffmann (13 patents)
- Klaus Bernhard Haaf (16 patents)
- Lothar Willms (176 patents)
- Thomas Auler (74 patents)
- Hermann Bieringer (186 patents)
- Hubert Menne (24 patents)
US Patent 6750222 · Granted Jun 15, 2004