Yongwang Liu

4 Patents

• US122814662025

  Indoor Grey Water Purification and Reuse Device, System and Method for Public Buildings

  China Architecture Design & Research Group Co., Ltd.

  0 cites
• US119765542024

  Bottom-hole Impact-rotation Stepping Combined Unloading Rock-breaking Efficient Drilling System and Method Thereof

  CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)

  0 cites
• US117501982023

  RC Oscillator

  HUAWEI TECHNOLOGIES CO., Ltd.

  0 cites
• US115918962023

  Efficient and Intelligent Steering Drilling System and Drilling Method

  CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)

  0 cites