Patents by Inventor James Nelson Tanis

James Nelson Tanis 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).

  • Stable suspensions of solids in metal salt solutions for use in water treatment
    Patent number: 6165369
    Abstract: Stable suspensions can be made from acidic metal salt solutions and finely divided acid-insoluble solid particles that have a particle size of less than twenty-five microns, preferably less than ten microns, and most preferably, about one micron. These suspensions can be used to treat surface waters to remove organic materials therefrom. The suspension forms a floc that includes the solid particles and organic materials, which floc rapidly settles out of solution, leaving purified water as the supernatant liquid.
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: December 26, 2000
    Assignee: General Chemical Corporation
    Inventors: James Nelson Tanis, Jawahar Chunilal Parekh