Assignee
Inventors
- Freddy Helmer-Metzmann (17 patents)
- Frank Osan (48 patents)
- Arnold Schneller (43 patents)
- Helmut Ritter (50 patents)
- Konstantin Ledjeff (18 patents)
- Roland Nolte (11 patents)
- Ralf Thorwirth (4 patents)
US Patent 6214488 · Granted Apr 10, 2001