Patents by Inventor Cornelia Dorzbach-Lange

Cornelia Dorzbach-Lange 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).

  • Polyether-substituted imide compounds and their use
    Patent number: 5414120
    Abstract: The present invention relates to novel polyether-substituted compounds of imides and their use as surface-active agents.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: May 9, 1995
    Assignee: Bayer AG
    Inventors: Klaus Pohmer, Rainer Weber, Cornelia Dorzbach-Lange, Reinhard Haida, Hans-Heinrich Moretto
  • Mineral building materials with additives
    Patent number: 5348582
    Abstract: The invention relates to mineral building materials which contain binders, optionally aggregates and at least one additive, characterized in that the additives used are compounds which are condensation products of substituted or unsubstituted diphenyl sulphones, formaldehyde and compounds from the group consisting of mononuclear or polynuclear, substituted or unsubstituted aromatic compounds, acid amides, urea, urea derivatives, substituted or unsubstituted aromatic ethers and imines.
    Type: Grant
    Filed: May 20, 1993
    Date of Patent: September 20, 1994
    Assignee: Bayer AG
    Inventors: Joachim Herzig, Kurt Bredtmann, Birger Knickel, Cornelia Dorzbach-Lange