Patents by Inventor Sari Tirkkonen

Sari Tirkkonen 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).

  • Device for cleaning of windows
    Publication number: 20040221412
    Abstract: The object of the invention is an appliance for drying window surfaces, which appliance is comprised of a frame part (1), a wiper part (2) attached to it and of a guide (3) to guide drying draw and water run. In the drying appliance in accordance with the invention the guide (3) has been placed on the edge of the frame part and the edge (4) of the guide (3) and the wiper part (2) are sideways mainly at the same point.
    Type: Application
    Filed: January 15, 2004
    Publication date: November 11, 2004
    Applicant: Inno-Onni Oy
    Inventors: Tapani Tirkkonen, Sari Tirkkonen