Patents by Inventor Yihai Zhong

Yihai Zhong 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).

  • Lifting cylinder with balanced valve
    Patent number: D789015
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: June 6, 2017
    Assignee: Ningbo Yinzhou Zhongtian Hydraulic Co., Ltd.
    Inventors: Pingguo Shu, Chengshu Jiang, Yihai Zhong