Assignee
Inventors
- Pieter Jacob Snijder (22 patents)
- Martin Gerard Hendrik Hiddink (12 patents)
- Pieter Hubertus Franciscus Deurenberg (2 patents)
- Johannes Martinus Maria Welschen (2 patents)
- Victor Zwanenberg (5 patents)
US Patent 8111022 · Granted Feb 7, 2012