Patents by Inventor Helmut Klee

Helmut Klee 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).

  • Process for making a granular product containing sodium triphosphate
    Patent number: 4800055
    Abstract: A granular hydrated product consisting completely or partially of sodium triphosphate for use in detergent and cleaning compositions is made. To this end, pulverulent sodium triphosphate containing less than 22 wgt % water is compacted by initially mixing it with a quantity of water sufficient for hydrating at most 100% of the sodium triphosphate to the hexahydrate and then continuously admitting the resulting mixture to a zone inside which it is made into solid matter under pressure.
    Type: Grant
    Filed: March 4, 1986
    Date of Patent: January 24, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Helmut Klee, Hans Haas, Werner Kowalski, Theo Dahmen