Patents by Inventor Yongshun Liu

Yongshun Liu 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).

  • RIGHT-ANGLE TURNING METHOD FOR SMALL-DIAMETER TBM EXPLORATION ADIT EXCAVATION
    Publication number: 20240151143
    Abstract: The present invention discloses a right-angle turning method for small-diameter TBM exploration adit excavation and belongs to the field of geological exploration of water conservancy and hydropower projects.
    Type: Application
    Filed: January 17, 2023
    Publication date: May 9, 2024
    Inventors: Youlin Wang, Yongshun Liu, Junheng Cao, Jian Jiao, Shuwu Li, Xiaoliang He, Jian Bao, Yue Zhao, Zhongqiang Zhao, Xiaoxia Xu, Lei Feng, Nan Chen, Wei Liu, Zhixiang Zhao