Granted Patent
Utility
US 6,662,956 · App. 09/854,010
Nanocrystal-containing filtration media
Inventor:
Ehud Levy
Patented Case
View Patent ↗
Granted: Dec 16, 2003
Filed: May 11, 2001
Inventor
Ehud Levy
Assignee (at issue)
SELECTO, 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.