Granted Patent
Utility
US 5,988,892 · App. 08/914,689
Low cost and easy to use improved optical coupler
Inventors:
Xiaobing Luo, Yu Zheng
Patented Case
View Patent ↗
Granted: Nov 23, 1999
Filed: Aug 19, 1997
Inventors
Xiaobing Luo
Yu Zheng
Assignee (at issue)
Oplink Communications, LLC
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.