Patents by Inventor Heinrich Feltkamp

Heinrich Feltkamp 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).

  • DHP delayed release preparation
    Patent number: 4966772
    Abstract: A solid medicament preparation having long-lasting action containing a sparingly soluble dihydropyridine active compound of the Formula (I) ##STR1## the preparation having a core-coating construction, the core containing at least one of the above mentioned dihydropyridines in slow-release form, the inner-most coating situated around the core contains no active compound and only dissolves slowly and adjacent to the inner-most coating a rapid release initial dose of the active compound mixed with a polymer.
    Type: Grant
    Filed: April 12, 1989
    Date of Patent: October 30, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Andreas Ohm, Helmut Luchtenberg, Manfred Bucheler, Roland Rupp, Heinrich Feltkamp