Patents by Inventor Louise L. Birk

Louise L. Birk 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: D353073
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: December 6, 1994
    Inventor: Louise L. Birk