Patents by Inventor Michaela Melzer

Michaela Melzer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Water-soluble or water-swellable, associatively thickening copolymers containing sulfo groups, method for producing the same and use thereof
    Patent number: 7238760
    Abstract: The invention relates to water-soluble or water-swellable copolymers which contain sulfo groups and which are based on (meth)acrylamide-alkylsulfonic acids and (meth)acrylamide or N-vinyl compounds, and to their use as additives for aqueous construction materials systems or for water-based paint and coating systems. The inventive copolymers also represent water retention agents which are highly effective, even when used in relatively small quantities, and which are highly compatible in construction material and paint systems of this type.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: July 3, 2007
    Assignee: Construction Research & Technology GmbH
    Inventors: Michael Schinabeck, Gerhard Albrecht, Alfred Kern, Manfred Schuhbeck, Michaela Melzer
  • Water-soluble or water-swellable, associatively thickening copolymers containing sulfo groups, method for producing the same and use thereof
    Publication number: 20040024154
    Abstract: The invention relates to water-soluble or water-swellable copolymers which contain sulfo groups and which are based on (meth)acrylamide-alkylsulfonic acids and (meth)acrylamide or N-vinyl compounds, and to their use as additives for aqueous construction materials systems or for water-based paint and coating systems. The inventive copolymers also represent water retention agents which are highly effective, even when used in relatively small quantities, and which are highly compatible in construction material and paint systems of this type.
    Type: Application
    Filed: July 11, 2003
    Publication date: February 5, 2004
    Inventors: Albrecht Schinabeck, Gerhard Albrecht, Alfred Kern, Manfred Schuhbeck, Michaela Melzer