Assignee
Inventors
- Michael E. Hilliard (8 patents)
- Louis D DeLellis (15 patents)
- William A. Grabowski (13 patents)
- Leonard Bores (5 patents)
- Robert D. Worley (8 patents)
- Mark Alan Hickey (7 patents)
- Stephen K. Tebbutt (3 patents)
US Patent 6073989 · Granted Jun 13, 2000