Assignee
Inventors
- Timo Pohjonen (19 patents)
- Harri Happonen (11 patents)
- Pertti Helevirta (7 patents)
- Auvo Kaikkonen (16 patents)
- Jan Nieuwenhuis (9 patents)
- Piet E. Haers (2 patents)
- Hermann Sailer (5 patents)
US Patent 6607548 · Granted Aug 19, 2003