Granted Patent
Utility
US 6,532,074 · App. 09/870,925
Free-space diffraction measurement of a phase mask for fabrication of a waveguide Bragg grating
Inventors:
Russell Wilcox, Jason Zweiback, Hongpu Li, Jan Popelek, Joshua E. Rothenberg
Patented Case
View Patent ↗
Granted: Mar 11, 2003
Filed: May 30, 2001
Inventors
Russell Wilcox
Jason Zweiback
Hongpu Li
Jan Popelek
Joshua E. Rothenberg
Assignee (at issue)
TERAXION 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.