Patents by Inventor Hans J. H. Heidenreich

Hans J. H. Heidenreich 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).

  • Treatment of aqueous dispersions
    Patent number: 5133870
    Abstract: A highly stable dispersion e.g. an oil-in water emulsion having a pH of from about 4 to about 12 is destabilized by treatment with a composition comprising a precipitant e.g. aluminum sulphate, a clay and a marl.
    Type: Grant
    Filed: June 16, 1989
    Date of Patent: July 28, 1992
    Inventor: Hans J. H. Heidenreich