Patents by Inventor Ruth M. Lipsitz

Ruth M. Lipsitz 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: D260593
    Type: Grant
    Filed: November 19, 1979
    Date of Patent: September 8, 1981
    Assignee: Design Innovations
    Inventors: Kevin D. Dolinar, Ruth M. Lipsitz, Barry R. Lipsitz