Patents Assigned to NINGBO YIYAN TECHNOLOGY TRADING CO., LTD.
  • Controller for heated clothing
    Patent number: D994622
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: August 8, 2023
    Assignee: NINGBO YIYAN TECHNOLOGY TRADING CO., LTD.
    Inventors: Dan Liang, Er Jun Che