Assignee
Inventors
- Willem Herman Gertruda Anna Koenen (14 patents)
- Arthur Winfried Eduardus Minnaert (8 patents)
- Luberthus Ouwehand (4 patents)
- Johannes Mathias Theodorus Antonius Adriens (1 patents)
- Wouter Onno Pril (11 patents)
US Patent 7333174 · Granted Feb 19, 2008