Assignee
Inventors
- Ottmar Gehring (15 patents)
- Harro Heilmann (12 patents)
- Andreas Schwarzhaupt (22 patents)
- Erik Sieglin (1 patents)
- Gernot Spiegelberg (24 patents)
- Wolfgang Stahl (3 patents)
- Armin Sulzmann (12 patents)
US Patent 8378520 · Granted Feb 19, 2013