Assignee
Inventors
- Gunter Neef (51 patents)
- Gerald Kirsch (24 patents)
- Andreas Steinmeyer (19 patents)
- Katica Schwarz (17 patents)
- Matthias Brautigam (3 patents)
- R. Thieroff-Ekerdt (1 patents)
- Petra Rach (7 patents)
US Patent 5292728 · Granted Mar 8, 1994