Assignee
Inventors
- Wilfried Nisch (16 patents)
- Alfred Stett (11 patents)
- Markus Schubert (4 patents)
- Michael Graf (34 patents)
- Heinz-Gerhard Graf (9 patents)
- Hugo Hammerle (3 patents)
- Eberhart Zrenner (9 patents)
- Martin Stelzle (17 patents)
US Patent 6804560 · Granted Oct 12, 2004