Assignee
Inventors
- Ludwig Schieferstein (27 patents)
- Herbert Fischer (96 patents)
- Hermann Kroke (1 patents)
- Brigitte Spei (3 patents)
- Volker Wehle (6 patents)
- Rainer Jeschke (10 patents)
- Uwe Ploog (48 patents)
US Patent 5358988 · Granted Oct 25, 1994