Patents by Inventor Jianmei Yao

Jianmei Yao 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).

  • Patent number: 11718334
    Abstract: A cart configured to carry vehicle doors and vehicle roofs includes a bottom frame, a top frame, three front vertical rods, three rear vertical rods, a middle frame, three moving rods, two inner chassis, two side chassis, a rear chassis, and a plurality of universal wheels. The bottom frame includes a front bottom rod, a rear bottom rod, a left bottom rod, and a right bottom rod. The front bottom rod, the rear bottom rod, the left bottom rod, and the right bottom rod are connected end to end. Each two adjacent bottom rods of the bottom frame are detachably installed and connected through a first corner brace and first T-shaped screws. The top frame is arranged directly above the bottom frame. A shape and a size of the top frame are same as a shape and a size of the bottom frame.
    Type: Grant
    Filed: February 7, 2023
    Date of Patent: August 8, 2023
    Assignee: SHENZHEN GLOBAL PURCHASE TRADING CO., LTD
    Inventor: Jianmei Yao
  • Patent number: 11312601
    Abstract: A movable lifting bracket relates to a field of lifting bracket and includes bearing frames, a main frame, and a mobile frame arranged on a lower portion of the main frame. Universal wheels and directional wheels are arranged on a lower portion of the movable frame. Adjusting sleeves are arranged on upper ends of the movable frame. First through holes are on an outer side of each of the adjusting sleeves. Lower ends of the main frame are inserted into the adjusting sleeves. A first limit pin is arranged on the outer side of each of the adjusting sleeves; A pressing frame is arranged on the main frame.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: April 26, 2022
    Assignee: SHENZHEN GLOBAL PURCHASE TRADING CO., LTD
    Inventor: Jianmei Yao
  • Patent number: D897916
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: October 6, 2020
    Inventor: Jianmei Yao
  • Patent number: D904256
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: December 8, 2020
    Inventor: Jianmei Yao
  • Patent number: D914934
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: March 30, 2021
    Inventor: Jianmei Yao
  • Patent number: D965941
    Type: Grant
    Filed: November 16, 2021
    Date of Patent: October 4, 2022
    Assignee: SHENZHEN GLOBAL PURCHASE TRADING CO., LTD
    Inventor: Jianmei Yao