Patents by Inventor Richard M. Schlauch

Richard M. Schlauch 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).

  • Colloid free precipitation of heavy metal sulfides
    Patent number: 4102784
    Abstract: In an aqueous solution heavy metal pollutant ions are removed as a precipitate formed by adding an insoluble slurry of a metal sulfide salt. The supernatant liquid is free of colloids.
    Type: Grant
    Filed: May 23, 1977
    Date of Patent: July 25, 1978
    Inventor: Richard M. Schlauch