Patents by Inventor Heidi Hummel-Marquardt

Heidi Hummel-Marquardt 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).

  • Patent number: 5712099
    Abstract: The invention relates to a process for the production of arabinonucleosides of general formula I ##STR1## in which X represents a hydrogen atom or a fluorine atom,from triacetates of general formula II ##STR2## in which X has the above-mentioned meaning, and the groupsAc respectively mean acetyl groups,which is characterized in that an esterase or lipase is caused to act on these compounds.
    Type: Grant
    Filed: January 17, 1997
    Date of Patent: January 27, 1998
    Assignee: Schering Aktiengesellschaft
    Inventors: Heidi Hummel-Marquardt, Mario Kennecke, Alfred Weber, Thomas Schmitz, Ulf Tisltam, Klaus Nickisch
  • Patent number: 5700666
    Abstract: A process for the production of arabinonucleotides of general formula I ##STR1## in which X represents a hydrogen atom or a fluorine atom, is described, which is characterized in that an arabinonucleoside of general formula II ##STR2## in which X has the above-mentioned meaning, is fermented in the presence of an aryl phosphate of general formula III ##STR3## in which Y symbolizes a hydrogen atom or a nitro group andZ symbolizes two hydrogen atoms or two alkali metal atoms,with a microorganism that is capable of phosphorylating nucleosides.
    Type: Grant
    Filed: September 4, 1996
    Date of Patent: December 23, 1997
    Assignee: Schering Aktiengesellschaft
    Inventors: Heidi Hummel-Marquardt, Thomas Schmitz, Mario Kennecke, Alfred Weber