Granted Patent
Utility
US 6,194,240 · App. 08/171,126
Method for fabrication of wavelength selective electro-optic grating for DFB/DBR lasers
Inventors:
Tien-Heng Chiu, Michael D. Williams
Patented Case
View Patent ↗
Granted: Feb 27, 2001
Filed: Dec 21, 1993
Inventors
Tien-Heng Chiu
Michael D. Williams
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.