Assignee
Inventors
- Georg Springmann (4 patents)
- Dieter Warmbier (5 patents)
- Dirk Hasselbrink (4 patents)
- Wilbert Stoy (1 patents)
- Michael Steuten (4 patents)
- Ulrich Zenz (3 patents)
- Eberhard Steinfort (1 patents)
US Patent 7611169 · Granted Nov 3, 2009