Assignee
Inventors
- Robert Frank (40 patents)
- Ruth Jostock (34 patents)
- Hans Schick (45 patents)
- Fritz Theil (10 patents)
- Olga Groeger (3 patents)
- Rene Kudick (1 patents)
- Helmut Sonnenschein (20 patents)
- Birgitta Henkel (12 patents)
US Patent 8173700 · Granted May 8, 2012