Patents by Inventor Jinfei Chen

Jinfei Chen 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: 12685392
    Abstract: Relates to the technical field of plastic chairs, providing a non-slip plastic chair and detection device. The chair includes a chair cover and a base plate. The chair cover is movably connected to the base plate. At least two chair legs are disposed at the bottom of the base plate. A leg pad is mounted at the bottom of each chair leg and sleeved on it. A non-slip member is disposed in the leg pad. An upper rotary table is mounted in the chair cover. A lower rotary table is mounted in the base plate. The upper rotary table is rotatably connected to the lower rotary table via balls, enabling the chair to rotate as a whole, improving experience. The balls enable rolling friction between the upper rotary table and it, supporting the chair cover and its load, while greatly reducing friction between the rotary tables, lowering rotation noise.
    Type: Grant
    Filed: August 21, 2025
    Date of Patent: July 21, 2026
    Assignee: YONGKANG BEIQIN INDUSTRY & TRADE CO., LTD
    Inventor: Jinfei Chen
  • Patent number: 12329713
    Abstract: The present invention discloses an easily adjustable walking aid, including two support frames, where the support frame is provided with a first adjusting assembly, a telescopic adjusting seat is disposed between the two support frames, a second adjusting assembly is disposed on the support frame, and a part of the second adjusting assembly is connected to the first adjusting assembly. The first adjusting assembly cooperates with the second adjusting assembly, so that when the walking aid is braked, a brake handle can be prevented from being pressed for a long time, and four wheels of the walking aid can also be braked synchronously. In addition, the height of the walking aid can be adjusted based on the height of a user. What's more, the telescopic adjusting seat is disposed for better storing the walking aid, so that the walking aid can be better used and carried.
    Type: Grant
    Filed: November 14, 2024
    Date of Patent: June 17, 2025
    Assignee: YONGKANG BEIQIN INDUSTRY & TRADE CO., LTD
    Inventors: Jinfei Chen, Zhanxiang Wang
  • Patent number: D1126831
    Type: Grant
    Filed: November 12, 2024
    Date of Patent: May 19, 2026
    Assignee: YONGKANG BEIQIN INDUSTRY & TRADE CO., LTD
    Inventors: Jinfei Chen, Zhanxiang Wang