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MEFFERT HELMUT

DE2 patents

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US8420737B2Apr 16, 2013

Method for the production of co-extrudates composed of polystyrene and of a crosslinked polyvinylpyrrolidone with reduced residual styrene monomer content

MEFFERT HELMUT0 citations43

US8394279B2Mar 12, 2013

Method for regenerating a filter aid

MEFFERT HELMUT0 citations39