Patents by Inventor Ivan G. Freshcorn

Ivan G. Freshcorn 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).

  • Wastewater treatment method
    Patent number: 4170554
    Abstract: A method of pollution abatement in the outflow of wastewater from a manufacturing plant or the like. A simultaneous precipitation of chromium and flouride contaminants is carried out with a subsequent removal of precipitates under conditions substantially reducing the volume of solids containing water to be handled.
    Type: Grant
    Filed: July 2, 1975
    Date of Patent: October 9, 1979
    Assignee: United Aircraft Products, Inc.
    Inventor: Ivan G. Freshcorn