Assignee
Inventors
- Christopher E. Schafer (18 patents)
- Ryan B. Gruhn (5 patents)
- Philip R. Littler (2 patents)
- Tim Caltrider (1 patents)
- Glenn Miller (2 patents)
- Ryan P. Littler (4 patents)
- Dennis J. Deyen (1 patents)
- James F. Popelka (2 patents)
US Patent 6302292 · Granted Oct 16, 2001