Patents by Inventor James D. Siegwarth

James D. Siegwarth 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).

  • Patent number: 4861497
    Abstract: This invention provides a method for the detoxification of aqueous solutions of organic compounds utilizing a liquid-phase oxidant such as hydrogen peroxide (aq) or ozone (aq). The aqueous solutions of organic compounds and the liquid-phase oxidant are mixed, then compressed and heated to bring the mixture into a supercritical phase. The oxidation reaction proceeds in the supercritical phase.
    Type: Grant
    Filed: March 18, 1988
    Date of Patent: August 29, 1989
    Inventors: James F. Welch, James D. Siegwarth