Assignee
Inventors
- Eeva-Liisa Heinonen (5 patents)
- Jaakko It{haeck over (a)}vaara (1 patents)
- Heidi Karves (5 patents)
- Kai Kronström (9 patents)
- Unknown
- Jari Mononen (16 patents)
- Petri Nykanen (29 patents)
- Mikko Virtanen (8 patents)
US Patent 6633758 · Granted Oct 14, 2003