Patents by Inventor Wenming ZENG

Wenming ZENG 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).

  • Dehumidification bag and preparation method thereof
    Patent number: 12012256
    Abstract: The present invention relates to a dehumidification bag and a preparation method thereof. The dehumidification bag comprises a bag body including a first side sheet and a second side sheet, the side sheet comprises an air-permeability and/or a composite film, wherein at least all or part of at least one side sheet is an air-permeability film; a moisture-proof layer covers the outside of the air-permeability. The dehumidification bag provided by the present invention provides an air-permeability on the bag body, and adopts heat sealing between the outer surface of the air-permeability layer and the moisture-proof layer, so that the air-permeability and the moisture-proof layer are in close contact without moisture absorption, which effectively prevents damage during transportation and storage.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: June 18, 2024
    Assignee: ZHEJIANG GOLDSTONE PACKAGING CO., LTD.
    Inventors: Guojin Sun, Can Chen, Wenming Zeng, Zhigang Xie, Miao Ren
  • DEHUMIDIFICATION BAG AND PREPARATION METHOD THEREOF
    Publication number: 20230081227
    Abstract: The present invention relates to a dehumidification bag and a preparation method thereof. The dehumidification bag comprises a bag body including a first side sheet and a second side sheet, the side sheet comprises an air-permeability and/or a composite film, wherein at least all or part of at least one side sheet is an air-permeability film; a moisture-proof layer covers the outside of the air-permeability. The dehumidification bag provided by the present invention provides an air-permeability on the bag body, and adopts heat sealing between the outer surface of the air-permeability layer and the moisture-proof layer, so that the air-permeability and the moisture-proof layer are in close contact without moisture absorption, which effectively prevents damage during transportation and storage.
    Type: Application
    Filed: September 16, 2020
    Publication date: March 16, 2023
    Applicant: ZHEJIANG GOLDSTONE PACKAGING CO., LTD.
    Inventors: Guojin SUN, Can CHEN, Wenming ZENG, Zhigang XIE, Miao REN