Granted Patent
Utility
US 6,621,959 · App. 09/993,637
Planar waveguide diffractive beam splitter/coupler
Inventors:
Eric Lin, Ying-Tsung Lu, Chang-Sheng Chu
Patented Case
View Patent ↗
Granted: Sep 16, 2003
Filed: Nov 27, 2001
Inventors
Eric Lin
Ying-Tsung Lu
Chang-Sheng Chu
Assignee (at issue)
Industrial Technology Research Institute
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.