Assignee
Inventors
- Joseph M. Nardone (7 patents)
- Richard P. Mangold (44 patents)
- Jody L. Pfotenhauer (5 patents)
- Keith L. Shippy (19 patents)
- David W. Aucsmith (35 patents)
- Richard L. Maliszewski (15 patents)
- Gary L. Graunke (54 patents)
US Patent 6205550 · Granted Mar 20, 2001