Patents by Inventor Boris Ravvin

Boris Ravvin 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).

  • Article of furniture
    Patent number: 5927835
    Abstract: An article of furniture has a desk part having an inner space, a chair part pivotally connected to the desk part around a substantially vertical axis between an operative position in which the chair part is spaced from the desk part so that a user can sit on the seat part and do work at the desk part, and an inoperative position in which the chair part is introduced into the interior of the desk part to form a compact and substantially peripherally closed unit.
    Type: Grant
    Filed: June 8, 1998
    Date of Patent: July 27, 1999
    Inventors: Yuriy Mergold, Boris Ravvin, David Ravvin