Patents by Inventor Barbara J. Spiersch

Barbara J. Spiersch 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).

  • Rack for drinking glasses
    Patent number: D346312
    Type: Grant
    Filed: October 23, 1992
    Date of Patent: April 26, 1994
    Inventor: Barbara J. Spiersch