Granted Patent
Utility
US 6,332,051 · App. 09/664,161
Beam splitting ball lens, method for its manufacture, and apparatus for its packaging
Inventors:
Jun Ai, Jan Popelek, Yao Li, Ray T. Chen
Patented Case
View Patent ↗
Granted: Dec 18, 2001
Filed: Sep 18, 2000
Inventors
Jun Ai
Jan Popelek
Yao Li
Ray T. Chen
Assignee (at issue)
NEC Research Institute, 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.