Patents Assigned to JPJ Investment Holding Co.
  • Patent number: 8029006
    Abstract: A stackable dolly includes a platform having upper and lower surfaces and a peripheral edge. A plurality of legs are generally coextensive with the platform and extend from the platform beyond the peripheral edge and extend radially outwardly from the platform beyond the platform periphery. Each leg includes an upper surface generally coextensive with the upper surface of the platform a lower surface serving as a mounting surface. The legs are equally angularly spaced from each other about the axis along the periphery of the platform. Casters are secured to each mounting surface of each leg. Engaging members are provided below the platform lower surface each engaging member being arranged approximate to the peripheral edge to abut against the peripheral edge of a cooperating dolly placed below the platform when the platform is supported on the cooperating dolly. The engaging members are restricting lateral movements of the engaged dollies relative to each other.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: October 4, 2011
    Assignee: JPJ Investment Holding Co.
    Inventor: Artem Kalajyan
  • Patent number: D583644
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: December 30, 2008
    Assignee: JPJ Investment Holding Co.
    Inventor: Wen Hao
  • Patent number: D587107
    Type: Grant
    Filed: April 8, 2008
    Date of Patent: February 24, 2009
    Assignee: JPJ Investment Holding Co.
    Inventor: Wen Hao
  • Patent number: D591134
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: April 28, 2009
    Assignee: JPJ Investment Holding Co.
    Inventor: Hrayr Darbinyan
  • Patent number: D591135
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: April 28, 2009
    Assignee: JPJ Investment Holding Co.
    Inventor: Xuemin Wu
  • Patent number: D600993
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: September 29, 2009
    Assignee: JPJ Investment Holding Co.
    Inventor: Wu Xue Min