Granted Patent
Utility
US 6,324,199 · App. 09/195,260
Intersubband light source with separate electron injector and reflector/extractor
Inventors:
Federico Capasso, Alfred Yi Cho, Sung-Nee George Chu, Claire F. Gmachl, Albert Lee Hutchinson, Deborah Lee Sivco, Alessandro Tredicucci
Patented Case
View Patent ↗
Granted: Nov 27, 2001
Filed: Nov 18, 1998
Inventors
Federico Capasso
Alfred Yi Cho
Sung-Nee George Chu
Claire F. Gmachl
Albert Lee Hutchinson
Deborah Lee Sivco
Alessandro Tredicucci
Assignee (at issue)
LUCENT TECHNOLOGIES INC.
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.