Patents by Inventor Mladen Minkov Tsonev

Mladen Minkov Tsonev 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).

  • Item of transformable furniture
    Patent number: 8025332
    Abstract: The invention relates to an item of transformable furniture, more particularly to an item of furniture transformable from a chair into a desk and vice versa, from a desk into a chair. The item of transformable furniture comprises a first plate (5) and a second plate (6), linked to each other by a hinge joint (4), where said two plates can rotate respectively round first and second horizontal (2, 3) axes so that the plates can be moved from a first position as seat and back, respectively, to a second position as front panel (17) and worktop (18), respectively, and vice versa. Said plates are linked by said first and second horizontal axes to a supporting construction, which consists of at least three interconnected folding elements (1, 1?, 19).
    Type: Grant
    Filed: September 16, 2007
    Date of Patent: September 27, 2011
    Assignee: ORT Joint Stock Company
    Inventors: Mladen Minkov Tsonev, Ilian Vladimirov Milinov
  • Item of Transformable Furniture
    Publication number: 20080296936
    Abstract: The invention relates to an item of transformable furniture, more particularly to an item of furniture transformable from a chair into a desk and vice versa, from a desk into a chair. The item of transformable furniture comprises a first plate (5) and a second plate (6), linked to each other by a hinge joint (4), where said two plates can rotate respectively round first and second horizontal (2, 3) axes so that the plates can be moved from a first position as seat and back, respectively, to a second position as front panel (17) and worktop (18), respectively, and vice versa. Said plates are linked by said first and second horizontal axes to a supporting construction, which consists of at least three interconnected folding elements (1, 1?, 19).
    Type: Application
    Filed: September 9, 2007
    Publication date: December 4, 2008
    Applicant: ORT JOINT STOCK COMPANY
    Inventors: Mladen Minkov Tsonev, Ilian Vladimirov Milinov
  • Folding transformable chair into a desk
    Patent number: D505558
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: May 31, 2005
    Assignee: Ort Joint-Stock Company
    Inventors: Ilian Vladimirov Milinov, Mladen Minkov Tsonev
  • Transformable chair into a desk
    Patent number: D506324
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: June 21, 2005
    Assignee: Ort Joint-Stock Company
    Inventors: Ilian Vladimirov Milinov, Mladen Minkov Tsonev