Assignee
Inventors
- Guido Knippels (12 patents)
- Fredericus Bernardus Kiewiet (2 patents)
- Hendrik Nicolaas Slingerland (15 patents)
- Pieter Kruit (91 patents)
- Benjamin John Cook (18 patents)
- Jacques Nonhebel (1 patents)
US Patent 8569712 · Granted Oct 29, 2013