Assignee
Inventors
- Ulrich Niewohner (57 patents)
- Siegfried Goldmann (98 patents)
- Ulrich Muller (65 patents)
- Andreas Knorr (116 patents)
- Elisabeth Perzborn (101 patents)
- Matthias Schramm (44 patents)
- Bernhard Beckermann (2 patents)
US Patent 5272161 · Granted Dec 21, 1993