Patents by Inventor Manfred Wieduwilt

Manfred Wieduwilt 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 preparation of crystalline TACA
    Patent number: 5521308
    Abstract: Process for the preparation of crystalline TACA ##STR1## in the presence of a base and subsequent precipitation by addition of a TACA solution to a partial amount of an acid, which can also contain a precipitation auxiliary, and subsequent completion of the precipitation by further addition of acid or by further addition of TACA solution and acid.
    Type: Grant
    Filed: January 12, 1994
    Date of Patent: May 28, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Reinhard Trodel, Manfred Wieduwilt
  • Cephalosporin derivatives
    Patent number: 5071979
    Abstract: What are disclosed are anti-bacterially active cephalosporin compounds of the formula ##STR1## pharmaceutical preparations containing such compounds, methods of making the compounds, methods for combatting bacterial infections therewith, and intermediates for such compounds.
    Type: Grant
    Filed: May 10, 1982
    Date of Patent: December 10, 1991
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rudolf Lattrell, Manfred Wieduwilt, Walter Durckheimer, Jurgen Blumbach, Karl Seeger