Granted Patent
Utility
US 6,263,128 · App. 09/324,238
Fiber unbalanced Mach-Zehnder interferometers with flat-top spectral response for application in wavelength division multiplexers
Inventor:
Chi-Hung Huang
Patented Case
View Patent ↗
Granted: Jul 17, 2001
Filed: Jun 2, 1999
Inventor
Chi-Hung Huang
Assignee (at issue)
WAVESPLITTER TECHNOLOGIES, 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.