Zhigang Shan

3 Patents

• US124355882025

  Rapid Assembly and Automatic Sampling Drilling Tool for Frozen Soil Layer Exploration

  POWERCHINA HUADONG ENGINEERING CORPORATION LIMITED

  0 cites
• US121560312024

  Block Chain-based Short Message Verification Method

  HAIER SMART HOME CO., Ltd.

  0 cites
• US117884092023

  Auto-collapsible Pore Pressure Probe Device and Operating Method Thereof

  OCEAN UNIVERSITY OF CHINA

  0 cites