Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2007-06-12
2007-06-12
McKane, Joseph K. (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
active
10502120
ABSTRACT:
The invention relates to ureido or carbamate derivatives of crown ethers and of silicon of formula:These derivatives can be grafted to silica gel for the purpose of obtaining supports for the chromatographic separation of cations or of molecules comprising amine functional groups, such as amino acids.
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Barre Yves
Duval Raphaël
Neige Roger
Simon Marc
Commissariat a l'Energir Atomique
Freistein Andrew B.
Hutchison Law Group PLLC
McKane Joseph K.
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