Granted Patent
Utility
US 5,296,720 · App. 07/792,535
Apparatus and method for discriminating against undesired radiation in a multiple quantum well long wavelength infrared detector
Inventors:
Cheng P. Wen, Chan-Shin Wu
Patented Case
View Patent ↗
Granted: Mar 22, 1994
Filed: Nov 17, 1991
Inventors
Cheng P. Wen
Chan-Shin Wu
Assignee (at issue)
Hughes Aircraft Company
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.