Patents by Inventor Gerhard Kristen

Gerhard Kristen 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).

  • Matrix film tablet with controlled release of a natural mixture of conjugated estrogens
    Patent number: 8268351
    Abstract: A pharmaceutical matrix film tablet with controlled release of natural mixtures of conjugated estrogens which have been obtained from the urine of pregnant mares.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: September 18, 2012
    Assignee: Abbott Products GmbH
    Inventors: Bernd Thumbeck, Klaus Budde, Gerhard Kristen, Margit Wiards
  • Matrix film tablet with controlled release of a natural mixture of conjugated estrogens
    Publication number: 20050019408
    Abstract: A pharmaceutical matrix film tablet with controlled release of natural mixtures of conjugated estrogens which have been obtained from the urine of pregnant mares.
    Type: Application
    Filed: June 14, 2004
    Publication date: January 27, 2005
    Applicant: Solvay Pharmaceuticals GmbH
    Inventors: Bernd Thumbeck, Klaus Budde, Gerhard Kristen, Margit Wiards
  • Cilansetron pharmaceutical preparation stabilized against racemization
    Patent number: 5977127
    Abstract: Solid and liquid pharmaceutical preparations containing cilansetron or its acid addition salts as active substance which include an amount sufficient to stabilize cilansetron against racemization, of a physiologically compatible water-soluble acid additive selected from monobasic or multibasic organic acids having 2 to 12 carbon atoms with a first p.sub.s value between 1.1 and 4.8, acid salts of the aforementioned multibasic organic acids, and acid salts of multibasic mineral acids having a first available pK.sub.s value between 1.5 and 7.5, as well as the use of such acid additives for stabilizing cilansetron against racemization in pharmaceutical preparations.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: November 2, 1999
    Assignee: Solvay Pharmaceuticals GmbH
    Inventors: Ingo Bonnacker, Hartmut Koehn, Gerhard Kristen, Christine Reichel