Granted Patent
Utility
US 6,278,134 · App. 09/316,618
Bi-directional unipolar semiconductor light source
Inventors:
Federico Capasso, Alfred Yi Cho, Claire F. Gmachl, Albert Lee Hutchinson, Deborah Lee Sivco, Alessandro Tredicucci
Patented Case
View Patent ↗
Granted: Aug 21, 2001
Filed: May 21, 1999
Inventors
Federico Capasso
Alfred Yi Cho
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.