Granted Patent
Utility
US 6,514,407 · App. 09/808,190
Chloro-, hydroxy- and alkoxysilane derivatives of polysaccharides or oligosaccharides, polymerizable and cross-linkable, their synthesis and their use as sources of novel support materials
Inventor:
Raphael Duval
Patented Case
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Granted: Feb 4, 2003
Filed: Mar 15, 2001
Inventor
Raphael Duval
Assignees (at issue)
INSTITUT FRANCAIS DU PETROLE
CHIRALSEP
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.