Assignee
Inventors
- Robert J. Duffy (13 patents)
- Lon M. Severe (12 patents)
- Edward M. Richards (11 patents)
- Shawn Wayne DeKalb (35 patents)
- James Stewart (19 patents)
- Dale Coleman (3 patents)
- Timothy W. Vanderveen (56 patents)
US Patent 7553291 · Granted Jun 30, 2009