Patents by Inventor Walter C. Brienza

Walter C. Brienza 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 preparing halide-free rhodium nitrate
    Patent number: 4983372
    Abstract: Halide-free rhodium nitrate is produced by a process which comprises quantitative reaction of metallic rhodium with hydrochloric acid, gaseous chloride and gaseous hydrogen chloride to produce hexachlororhodic acid, followed by the quantitative reaction of this acid with potassium iodide to produce rhodium iodide. The resulting rhodium iodide is quantitatively converted to halide-free rhodium nitrate by reacting with nitric acid and hydrogen peroxide.
    Type: Grant
    Filed: July 20, 1990
    Date of Patent: January 8, 1991
    Inventor: Walter C. Brienza