Assignee
Inventors
- Fred Sanford (3 patents)
- Robert Bather (3 patents)
- Martin Culverhouse (4 patents)
- Walter Sikora (3 patents)
- Melanie Russell (5 patents)
- Peter Martin (20 patents)
- Robert Hasselbaum (4 patents)
- Russell Barr (5 patents)
US Patent 7840296 · Granted Nov 23, 2010