Patents by Inventor Duane K. Winkler

Duane K. Winkler 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).

  • Wound evacuator
    Patent number: 5112323
    Abstract: A wound evacuator is provided with a discharge valve assembly which permits body fluid contained within the wound evacuator to be drained to a collection bag. The discharge valve assembly is also designed to minimize leakage of body fluid when the collection bag is separated from the wound evacuator.
    Type: Grant
    Filed: February 8, 1990
    Date of Patent: May 12, 1992
    Assignee: Snyder Laboratories, Inc.
    Inventors: Duane K. Winkler, Daniel H. Olson