Assignee
Inventors
- Jacob Van Soolingen (4 patents)
- Alexander P. M. Vrinzen (4 patents)
- Christiaan J. C. Stoelwinder (4 patents)
- Abram Peet (1 patents)
- Hendricus J. Rozie (1 patents)
- Otto G. Plantema (4 patents)
US Patent 6326521 · Granted Dec 4, 2001