Assignee
Inventors
- Leonard E. Speers (7 patents)
- William R. Schwelitz (2 patents)
- Robert W. Begley (5 patents)
- Terry Kyle Olson (3 patents)
- Ben J. Huisman (1 patents)
- Jason Wiese (4 patents)
- Shane Dean Kruse (3 patents)
US Patent 6688450 · Granted Feb 10, 2004