Assignee
Inventors
- Wilhelm Stahl (13 patents)
- Michael Ahlers (22 patents)
- Axel Walch (32 patents)
- Eckhart Bartnik (2 patents)
- Gerhard Kretzschmar (30 patents)
- Susanne Grabley (33 patents)
- Rudolf Schleyerbach (18 patents)
US Patent 6037467 · Granted Mar 14, 2000