Patents by Inventor Jeffrey L. Huntington

Jeffrey L. Huntington 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: 5766839
    Abstract: Methods for forming thin layer barrier layer films for use in enzyme containing laminated membranes and membranes formed thereby are disclosed. The barrier layers exhibit improved acetaminophen rejection and comprise a cellulose acetate/cellulose acetate butyrate blend. The thin layer barrier membranes are formed from a plural solvent containing solution and are cured at a critical temperature of about 102.degree.-114.degree. F., most preferably at about 106.degree. F.-114.degree. F. while traveling through a circulating hot air oven. Alternatively, the membranes can be cured at room temperature or in a stagnant oven at temperatures of from room temperature to about 175.degree. C. (350.degree. F.) for a period of from about 10 minutes to 1 hour.
    Type: Grant
    Filed: March 19, 1996
    Date of Patent: June 16, 1998
    Assignee: YSI Incorporated
    Inventors: Jay M. Johnson, Jeffrey L. Huntington