Assignee
Inventors
- Adrianus Johannes Stephanus Maria De Vaan (35 patents)
- Peter Luerkens (29 patents)
- Gerardus Johannes Josephus Vanlier (5 patents)
- Adrianus J. Frensch (3 patents)
- Henricus Wilhelmus Johannes Van Den Wildenberg (1 patents)
US Patent 7121668 · Granted Oct 17, 2006