Patents by Inventor Zhenyan Yu

Zhenyan Yu 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).

  • Round flame heater
    Patent number: D639919
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: June 14, 2011
    Assignee: Hi-Seasons Products (Changzhou) CD., Ltd.
    Inventor: Zhenyan Yu
  • Table flame heater
    Patent number: D640355
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: June 21, 2011
    Assignee: Hi-Seasons Products (Changzhou) CD., Ltd.
    Inventor: Zhenyan Yu