Granted Patent
Utility
US 6,331,913 · App. 09/702,538
Optical polarization beam combiner/splitter
Inventors:
Yonglin Huang, Ping Xie
Patented Case
View Patent ↗
Granted: Dec 18, 2001
Filed: Oct 30, 2000
Inventors
Yonglin Huang
Ping Xie
Assignee (at issue)
New Focus, 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.