Assignee
Inventors
- Christer Bergstrom (15 patents)
- Jukka Seppala (23 patents)
- Juhana Ruotoistenmaki (3 patents)
- Tapio Hase (1 patents)
- Sari Paavola (1 patents)
- Lars-Olof Pietila (3 patents)
- Lisbeth Ahjopalo (1 patents)
US Patent 6054543 · Granted Apr 25, 2000