Assignee
Inventors
- Rolf Keltjens (10 patents)
- Johannes Jan Platteeuw (20 patents)
- Juan Cucala Escoi (1 patents)
- Inocencia Margallo Lana (2 patents)
- Frantisek Picha (18 patents)
- Montserrat Gallego Luengo (3 patents)
US Patent 6717015 · Granted Apr 6, 2004