Patents by Inventor Hans Ratajczak

Hans Ratajczak 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).

  • Patent number: 3931416
    Abstract: Calcium-sodium-phosphates suitable for animal feed use are produced by heating a granulated mixture containing 1.75 to 2.25 moles calcium oxide and 1.25 to 0.75 moles sodium oxide per mole of P.sub.2 O.sub.5 for at least 10 minutes to between 600.degree. to 1,000.degree.C, while being subjected to vigorous movement and cooling to room temperature.
    Type: Grant
    Filed: August 8, 1974
    Date of Patent: January 6, 1976
    Assignee: Chemische Fabrik Kalk GmbH
    Inventors: Gerhard Grams, Hans Ratajczak