Patents by Inventor Gerd Toppel

Gerd Toppel 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).

  • Pharmaceutical preparations having controlled release of active compound and processes for their preparation
    Patent number: 5900425
    Abstract: The invention relates to pharmaceutical preparations having controlled release of active compound and to processes for their preparation, in particular for poorly soluble active compounds having problematic bioavailability.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: May 4, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Venkata-Rangarao Kanikanti, Wolfgang Muck, Andreas Ohm, Peter Kurka, Gerd Toppel