Patents by Inventor Werner Grawingholt

Werner Grawingholt 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).

  • Effervescent composition and tablet made there from
    Patent number: 5762951
    Abstract: The present invention relates to an acidic effervescent component for direct tableting of effervescent tablets and a process for its preparation.
    Type: Grant
    Filed: July 26, 1993
    Date of Patent: June 9, 1998
    Assignee: Bayer Aktiengesellschaft
    Inventors: Joachim Maasz, Christian Fritsch, Werner Grawingholt, Bernhard Streuff, Georg Frank
  • Effervescent ibuprofen preparations
    Patent number: 5445827
    Abstract: An effervescent ibuprofen preparation comprisinga) basic granules consisting of 1 part by weight of water-soluble ibuprofen salt, 2 to 10 parts by weight of excipient, 0.3 to 0.8 part by weight of stabilizer and 0.1 to 1 part by weight of sodium carbonate or potassium carbonate andb) 1 to 4 parts by weight of an acid component.
    Type: Grant
    Filed: July 7, 1993
    Date of Patent: August 29, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Christian Fritsch, Werner Grawingholt