Assignee
Inventors
- Marja Sodervall (12 patents)
- Arja Kalapudas (14 patents)
- Lauri Kangas (36 patents)
- Risto Lammintausta (23 patents)
- Pirkko Harkonen (6 patents)
- Kalervo Vaananen (10 patents)
- Arto Karjalainen (42 patents)
US Patent 6875775 · Granted Apr 5, 2005