Assignee
Inventors
- Grantland A. Craig (4 patents)
- James E. Hertel (20 patents)
- Gary E. Johnson (24 patents)
- Wayne W. Luebke (1 patents)
- Peter Heath (34 patents)
- Thomas Huempfner (2 patents)
- John H. Wunderlich (3 patents)
US Patent 6286712 · Granted Sep 11, 2001