Assignee
Inventors
- William L. Heumann (7 patents)
- Frank J. Elvin (11 patents)
- Russell J. Lewis (1 patents)
- Edwin D. Tenney (2 patents)
- Joseph A. Urban (1 patents)
- Mark Noppenberger (2 patents)
- James F. Miller (16 patents)
US Patent 6686752 · Granted Feb 3, 2004