Patents by Inventor Dwayne T. Friensen

Dwayne T. Friensen 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).

  • Physicochemically functional ultrathin films by interfacial polymerization
    Patent number: 4948506
    Abstract: Interfacially-polymerized ultrathin films containing physicochemically functional groups are disclosed, both with and without supports. Various applications are disclsoed, including membrane electrodes, selective membranes and sorbents, biocompatible materials, targeted drug delivery, and narrow band optical absorbers.
    Type: Grant
    Filed: November 14, 1988
    Date of Patent: August 14, 1990
    Assignee: Bend Research, Inc.
    Inventors: Harold K. Lonsdale, Walter C. Babcock, Dwayne T. Friensen, Kelly L. Smith, Bruce M. Johnson, Carl C. Wamser