Patents by Inventor Weiwei Zeng

Weiwei 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).

  • Cold storage material and cold storage type cryogenic refrigerator using same
    Patent number: 11906228
    Abstract: Disclosed are a cold storage material and a cold storage type cryogenic refrigerator using same. The cold storage material is tin alloy particles, the content of tin in the tin alloy particle is not less than 40% and not more than 99%, and the cold storage material at least includes one component of bismuth, antimony, silver and gold. The cold storage type cryogenic refrigerator includes a cold storage device, and the cold storage material filled in the cold storage device is tin alloy particles, is lead-free, lowly toxic, easy in spherization and extremely accessible and has a relatively good thermal performance, has properties comparable to those of lead, and has a relatively good heat exchange performance when being used in a cold storage type refrigerator.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: February 20, 2024
    Assignee: CSIC PRIDE (NANJING) CRYOGENIC TECHNOLOGY CO., LTD.
    Inventors: Zhipo Zhou, Ao Li, Weiwei Zeng, Yuan Tao
  • COLD STORAGE MATERIAL AND COLD STORAGE TYPE CRYOGENIC REFRIGERATOR USING SAME
    Publication number: 20210231349
    Abstract: Disclosed are a cold storage material and a cold storage type cryogenic refrigerator using same. The cold storage material is tin alloy particles, the content of tin in the tin alloy particle is not less than 40% and not more than 99%, and the cold storage material at least includes one component of bismuth, antimony, silver and gold. The cold storage type cryogenic refrigerator includes a cold storage device, and the cold storage material filled in the cold storage device is tin alloy particles, is lead-free, lowly toxic, easy in spherization and extremely accessible and has a relatively good thermal performance, has properties comparable to those of lead, and has a relatively good heat exchange performance when being used in a cold storage type refrigerator.
    Type: Application
    Filed: August 8, 2018
    Publication date: July 29, 2021
    Applicant: CSIC PRIDE (NANJING) CRYOGENIC TECHNOLOGY CO., LTD.
    Inventors: Zhipo Zhou, Ao Li, Weiwei Zeng, Yuan Tao
  • Pet feeding device
    Patent number: D897049
    Type: Grant
    Filed: December 24, 2018
    Date of Patent: September 22, 2020
    Assignee: SHENZHEN KEEKOONVISION TECHNOLOGY CO., LTD.
    Inventor: Weiwei Zeng
  • Pet water fountain
    Patent number: D1020125
    Type: Grant
    Filed: November 6, 2023
    Date of Patent: March 26, 2024
    Inventor: Weiwei Zeng