Patents by Inventor G. Duncan Hitchems

G. Duncan Hitchems 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: 6468953
    Abstract: The invention relates to the formation of antimicrobial solutions formed by ozonating a liquid containing organic precursor molecules. The preferred organic precursor molecules include carboxylic acids, most particularly octanoic acid with or without acetic acid, and alcohols, most particularly greater than 80 weight percent ethanol. The ozonating step is preferably performed with minimal or no water present in the liquid containing the organic precursors. After ozonation is complete, the ozonated liquid may be diluted with water or other solvent to form a use solution for contacting and cleaning a microbially contaminated surface or other medium.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: October 22, 2002
    Assignee: Lynntech, Inc.
    Inventors: G. Duncan Hitchems, Steven Drabek, Anthony Giletto, Charles Blankenburg, Kyle B. Uselton, Jennifer Schultz-Bathurst, Shivaun Archer
  • Patent number: 6103078
    Abstract: The present invention provides improved ionically conducting membranes having internal passages therethrough and methods for making the improved membranes. The membranes may be formed from any ionically conducting material. In particular, the membranes may be formed of a single ionically conducting material, such as in a cation-conductive or anion-conductive membrane, or a plurality of ionically conducting material, such as in a bipolar membrane having a cation-selective region, an anion-selective region, and an interfacial region between the anion-selective region and the cation-selective region.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: August 15, 2000
    Assignee: Lynntech, Inc.
    Inventors: G. Duncan Hitchems, Harry Jabs, Craig C. Andrews, Oliver J. Murphy, William White, George W. Jackson, Charles L. C. Tennakoon