Granted Patent
Utility
US 6,278,817 · App. 09/386,622
Asymmetric low dispersion bragg grating filter
Inventor:
Liang Dong
Patented Case
View Patent ↗
Granted: Aug 21, 2001
Filed: Aug 31, 1999
Inventor
Liang Dong
Assignee (at issue)
CORNING INCORPORATED
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.