Assignee
Inventors
- Roelof Buter (23 patents)
- Josephina Johanna Hendrika Maria Raben-Schlief (1 patents)
- Hendrik Meijer (6 patents)
- Geertje Marte Kuiken (1 patents)
- Rienk Hettema (2 patents)
- Jamie MacLiver Roy (3 patents)
- Bart Bouma (1 patents)
US Patent 8017686 · Granted Sep 13, 2011