Patents by Inventor Barbara Rognlien

Barbara Rognlien 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).

  • Window cleaning squeegee
    Patent number: 5864913
    Abstract: A window cleaning squeegee of the type having a handle and a head extending transverse to the handle, with the head having first and second elongated channels formed on opposite sides thereof. The first channel receiving a cleaning assembly comprising a sponge, an enveloping net-like webbing and a stiffener element. The stiffener element has an end which is located outside the first channel and which engages the sponge and the webbing. This end being of essentially triangular cross-section. The second channel further includes an elongated rubber blade slidingly received therein.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: February 2, 1999
    Assignee: Carrand Companies, Inc.
    Inventors: Brock Robertson, David Rognlien, Barbara Rognlien