Patents by Inventor Barbel Bennua-Skalmowski

Barbel Bennua-Skalmowski 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).

  • Process for the conversion of hydroxyl groups into the corresponding fluorine compounds
    Patent number: 5760255
    Abstract: The invention is drawn to a process for the conversion of primary and secondary alcohols into the corresponding fluorine compounds in the presence of an organic solvent, 2-3 equivalents of a strong base and perfluoroalkylsulphonyl fluorides, such as perfluorobutanesulphonyl fluoride or higher homologues.
    Type: Grant
    Filed: June 25, 1996
    Date of Patent: June 2, 1998
    Assignee: Bayer AG
    Inventors: Helmut Vorbruggen, Barbel Bennua-Skalmowski
  • Process for preparing nucleosides with unprotected sugars
    Patent number: 5750676
    Abstract: A novel process for nucleoside synthesis, which process comprises reacting the free sugar with heterocyclic bases in the presence of silylating agents in an inert solvent containing a Lewis acid.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: May 12, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Helmut Vorbruggen, Konrad Krolikiewicz, Barbel Bennua-Skalmowski