Patents by Inventor Yi LIWEI

Yi LIWEI 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).

  • Baby stroller frames
    Patent number: 11230314
    Abstract: The present disclosure provides a baby stroller frame, comprising: a front leg rod, a front wheel connected to a lower end of the front leg rod; a rear leg rod, a rear wheel connected to a lower end of the rear leg rod, an upper end of the front leg rod being rotatably connected with an upper end of the rear leg rod; a handle set comprising a rear link rod, the rear link rod is rotatably connected to the rear leg rod at a position that is on the rear link rod and is close to an lower end of the rear link rod; a front support rod comprising a first link rod and a second rod slidably connected to the first link rod, the first link rod being rotatably connected to the upper end of the rear leg rod or to the upper end of the front leg rod, the second link rod being rotatably connected to the rear link rod; a seat rod having one end rotatably connected to the rear link rod and one other end rotatably connected to a middle portion of the front leg rod; the stroller frame according to the present disclosure is provi
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: January 25, 2022
    Assignee: ARTSANA S.P.A.
    Inventor: Yi Liwei
  • BABY STROLLER FRAMES
    Publication number: 20200298899
    Abstract: The present disclosure provides a baby stroller frame, comprising: a front leg rod, a front wheel connected to a lower end of the front leg rod; a rear leg rod, a rear wheel connected to a lower end of the rear leg rod, an upper end of the front leg rod being rotatably connected with an upper end of the rear leg rod; a handle set comprising a rear link rod, the rear link rod is rotatably connected to the rear leg rod at a position that is on the rear link rod and is close to an lower end of the rear link rod; a front support rod comprising a first link rod and a second rod slidably connected to the first link rod, the first link rod being rotatably connected to the upper end of the rear leg rod or to the upper end of the front leg rod, the second link rod being rotatably connected to the rear link rod; a seat rod having one end rotatably connected to the rear link rod and one other end rotatably connected to a middle portion of the front leg rod; the stroller frame according to the present disclosure is provi
    Type: Application
    Filed: March 20, 2020
    Publication date: September 24, 2020
    Inventor: Yi LIWEI