Assignee
Inventors
- Auvo Kaikkonen (16 patents)
- Piet E. Haers (2 patents)
- Hermann Sailer (5 patents)
- Harri Happonen (11 patents)
- Riitta Suuronen (1 patents)
- Timo Waris (3 patents)
- Olli Karhi (4 patents)
- Pertti Tormala (51 patents)
US Patent 6533454 · Granted Mar 18, 2003