Assignee
Inventors
- Kenneth E. Robbins (5 patents)
- Stephen G. Ruggles (6 patents)
- Dan Duncan (2 patents)
- John C. Williams (5 patents)
- Stephen K. Tung (4 patents)
- William James Sumner (5 patents)
- Cuong V. Dinh (6 patents)
US Patent 4643645 · Granted Feb 17, 1987