Patents by Inventor Roy Gale Lowther

Roy Gale Lowther 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 the synthesis of hydroxyethyl cellulose with improved resistance to enzyme catalyzed hydrolysis
    Patent number: 4084060
    Abstract: A process for the synthesis of hydroxyethyl cellulose having improved resistance of enzyme catalyzed hydrolysis is provided by employment of a controlled, optimum amount of available water for swelling the cellulose in aqueous caustic reaction medium in hydroxy ethoxylation sequences of first high and then low ratios of caustic:cellulose.
    Type: Grant
    Filed: November 18, 1976
    Date of Patent: April 11, 1978
    Assignee: Union Carbide Corporation
    Inventors: Joseph Edward Glass, Jr., Roy Gale Lowther