Assignee
Inventors
- Mark David Charles (11 patents)
- Wilfried Franke (7 patents)
- David E. Green (29 patents)
- Thomas Lawley Hough (7 patents)
- Dale Robert Mitchell (21 patents)
- Donald Simpson (5 patents)
- John Frederick Atherall (12 patents)
US Patent 6893650 · Granted May 17, 2005