Patents by Inventor ChangHuai Long

ChangHuai Long 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).

  • Liquor dispenser
    Patent number: D925961
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: July 27, 2021
    Assignee: Hangzhou Longchuang Youpin Intelligent Tech Co., Ltd.
    Inventor: ChangHuai Long