Assignee
Inventors
- Hamid Ahmadi (13 patents)
- Johannes G. Beha (12 patents)
- Wolfgang Denzel (11 patents)
- Antonius Engbersen (14 patents)
- Ronald P. Luijten (13 patents)
- Charles A. Murphy (1 patents)
- Erich Port (1 patents)
US Patent 5008878 · Granted Apr 16, 1991