Granted Patent
Utility
US 6,298,077 · App. 09/250,900
GaInAsP/AIGaInP laser diodes with AIGaAs type II carrier blocking layer in the waveguide
Inventor:
Xiauguang He
Patented Case
View Patent ↗
Granted: Oct 2, 2001
Filed: Feb 16, 1999
Inventor
Xiauguang He
Assignee (at issue)
OPTOPOWER CO., LTD.
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.