Assignee
Inventors
- Mark H. Etzel (7 patents)
- Robert John Frank (5 patents)
- Daniel Nelson Heer (16 patents)
- Robert Joseph McNelis (5 patents)
- Semyon B. Mizikovsky (72 patents)
- Robert J. Rance (15 patents)
- R. Dale Shipp (5 patents)
US Patent 6233337 · Granted May 15, 2001