Patents by Inventor Peter Dresen

Peter Dresen 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).

  • Alginate-based verapamil-containing depot drug form
    Patent number: 5132295
    Abstract: An alginate-based depot drug form for which the rate of release of the active substance in vitro can be adjusted very precisely is described.
    Type: Grant
    Filed: January 24, 1991
    Date of Patent: July 21, 1992
    Assignee: Knoll AG
    Inventors: Evamarie Balz, Heinz Einig, Peter Dresen