Assignee
Inventors
- Michael Ron Hammer (16 patents)
- Philip Valmont Wilson (6 patents)
- Mark Williams (18 patents)
- Dower C. Bricker (1 patents)
- Martin K. Masters (4 patents)
- Stewart R. Campbell (2 patents)
- Peter Layton (3 patents)
US Patent 6813019 · Granted Nov 2, 2004