Patents Assigned to Barriergen, Inc.
  • Hypoallergenic jewelry and method of making the same
    Patent number: 4861658
    Abstract: Hypoallergenic jewelry and a method of making the same is achieved by providing vapor deposition of unsubstituted and substituted linear homopolymers and copolymers of poly(p-xylylene) on the jewelry having a thickness in the range of about 0.5 microns to about 25 microns. A new use of preventing allergic reactions when jewelry is worn is achieved by providing the jewelry with a poly(p-xylylene) polymer coating which provides a hypoallergenic surface on the jewelry.
    Type: Grant
    Filed: May 2, 1988
    Date of Patent: August 29, 1989
    Assignee: Barriergen, Inc.
    Inventors: Donald L. Griffin, Ralph E. Pfister