Patents by Inventor Huajun MAO

Huajun MAO 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).

  • Sealed box container, main machine of heat recovery switching device, and refrigeration device
    Patent number: 11913670
    Abstract: Disclosed are a sealed box container, a main machine of a heat recovery switching device and a refrigeration device. The sealed box container includes box bodies that are spliced to form a sealed cavity, and is provided with a through hole in communication with the sealed cavity, and the sealed cavity is used for accommodating a pipeline assembly of a main machine, and the pipeline assembly is connected to an external pipeline by means of the through hole.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: February 27, 2024
    Assignees: GD MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD., MIDEA GROUP CO., LTD.
    Inventors: Huajun Mao, Shuqing Liu
  • SEALED BOX CONTAINER, MAIN MACHINE OF HEAT RECOVERY SWITCHING DEVICE, AND REFRIGERATION DEVICE
    Publication number: 20230027551
    Abstract: Disclosed are a sealed box container, a main machine of a heat recovery switching device and a refrigeration device. The sealed box container includes box bodies that are spliced to form a sealed cavity, and is provided with a through hole in communication with the sealed cavity, and the sealed cavity is used for accommodating a pipeline assembly of a main machine, and the pipeline assembly is connected to an external pipeline by means of the through hole.
    Type: Application
    Filed: March 18, 2020
    Publication date: January 26, 2023
    Inventors: Huajun MAO, Shuqing LIU