Assignee
Inventors
- Leslie J. Charles (4 patents)
- Joseph F. Dellaria (67 patents)
- George W. Griesgraber (115 patents)
- Philip D. Heppner (64 patents)
- Unknown
- John Mickelson (25 patents)
- Michael J. Rice (51 patents)
US Patent 6664260 · Granted Dec 16, 2003