Patents by Inventor Dagmar Kottek

Dagmar Kottek 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).

  • Bis-carbalkoxy compounds and their preparation
    Patent number: 4288607
    Abstract: The invention relates to halogenous polyesters with the recurrent general formula ##STR1## in which at least part of the R's, e.g.
    Type: Grant
    Filed: March 12, 1979
    Date of Patent: September 8, 1981
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Gerhard Bier, Dagmar Kottek, Egon N. Petersen, Hermann Richtzenhain, Norbert Vollkommer
  • Linear or unsaturated polyesters prepared from bis-carbalkoxy compounds
    Patent number: 4152511
    Abstract: The invention relates to halogenous polyesters with the recurrent general formula ##STR1## in which at least part of the R's, e.g.
    Type: Grant
    Filed: October 19, 1976
    Date of Patent: May 1, 1979
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Gerhard Bier, Dagmar Kottek, Egon N. Petersen, Hermann Richtzenhain, Norbert Vollkommer