Assignee
Inventors
- Jörg Butschke (4 patents)
- Albrecht Ehrmann (20 patents)
- Ernst Haugeneder (4 patents)
- Frank-Michael Kamm (17 patents)
- Florian Letzkus (5 patents)
- Hans Loschner (25 patents)
- Reinhard Springer (7 patents)
US Patent 6835508 · Granted Dec 28, 2004