Patents/Inventors

Xiongwen Yang

BeijingCN6 patents

7 Patents

US124355852025
Hydraulic Control Apparatus and Method for a Downhole Tool
China National Petroleum Corporation
0 cites
US122186102025
Sensor System with an Interior Sensor and a Piezoelectric Power Supply
China National Petroleum Corporation
0 cites
US121041112024
Unique PDC Microstructure and the Method of Making It
CHINA NATIONAL PETROLEUM CORPORATION
0 cites
US120879312024
Hybrid Battery System with Multiple Discharge Voltage Plateaus and Greater Charge Capacity of Metal in the Negative Electrode
CNPC USA Corporation
0 cites
US120117732024
Cutting Elements with Reduced Variable Back Rake Angle
Beijing Huamei, Inc.
0 cites
US118080902023
Force Modulation System for a Drill Bit
Beijing Huamei Inc. CNPC
0 cites
US115918582023
Cutting Elements with Increased Curvature Cutting Edges
CHINA NATIONAL PETROLEUM CORPORATION
0 cites