Assignee
Inventors
- Florence Leplingard (8 patents)
- John J. Kingston (3 patents)
- Ross D. Bringans (26 patents)
- David K. Fork (142 patents)
- Robert G. Waarts (61 patents)
- David F. Welch (179 patents)
- Randall S. Geels (18 patents)
US Patent 5654229 · Granted Aug 5, 1997