Assignee
Inventors
- Robert S. Davidson (32 patents)
- Robert W. Ferguson (5 patents)
- Barry Eugene Heldman (2 patents)
- Timothy J. Diekmann (1 patents)
- Anthony Robert Maistrovich (6 patents)
- James A. Higgins (10 patents)
- Mark D. Gehlsen (31 patents)
US Patent 5644007 · Granted Jul 1, 1997