Granted Patent
Utility
US 6,571,035 · App. 09/927,095
Fiber optical switches based on optical evanescent coupling between two fibers
Inventors:
Bo Pi, Shulai Zhao
Patented Case
View Patent ↗
Granted: May 27, 2003
Filed: Aug 10, 2001
Inventors
Bo Pi
Shulai Zhao
Assignee (at issue)
Oluma, 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.