Granted Patent
Utility
US 6,556,746 · App. 09/927,099
Integrated fiber devices based on Mach-Zehnder interferometers and evanescent optical coupling
Inventors:
Shulai Zhao, Bo Pi
Patented Case
View Patent ↗
Granted: Apr 29, 2003
Filed: Aug 10, 2001
Inventors
Shulai Zhao
Bo Pi
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.