Assignee
Inventors
- Timothy F. Coha (16 patents)
- Ulf Sawert (27 patents)
- Neal M. Letendre (1 patents)
- William Zimmerman (7 patents)
- Gregory Keller Rasmussen (10 patents)
- Leon Pitek (1 patents)
- Dan H. Emmert (5 patents)
US Patent 5218942 · Granted Jun 15, 1993