Patents/Assignees

PETROCHINA COMPANY LIMITED

17 patents in portfolio

US12617689utility2026
Separation and Recovery Method for Boron Trifluoride and Complex Thereof in Olefin Polymerization Reaction
0 cites
US12553813utility2026
Rock Dynamic Physical Property Measurement System
0 cites
US12509985utility2025
Oil Well Optical Fiber Multi-parameter Testing Method and Apparatus
0 cites
US12503523utility2025
Catalyst Composition for Polymerization of Α-olefin and Preparation and Use Thereof
0 cites
US12331601utility2025
Device and Method for Continuous Mixing of Solid Drag Reducer
0 cites
US12163410utility2024
Method and Apparatus for Predicting Optimal Exploitation in Shale Oil In-situ Conversion
0 cites
US12117584utility2024
Device and Method for Determining Original Stratum Direction of Core
0 cites
US12098783utility2024
Gas Flow Control Valve and Mounting Method for Gas Flow Control Valve
0 cites
US12038344utility2024
Phase Power Device and Fluid Experiment System
0 cites
US11952536utility2024
Carbon-dioxide-responsive Self-thickening Intelligent Fluid Based on Supramolecular Self-assembly
0 cites
US11858827utility2024
Preparation Method of a Nanotube Hierarchically Structured Lithium Titanate and Use and Product Thereof
0 cites
US11802233utility2023
Permeability-enhancing Flooding System for Tight Oil Reservoirs, and Preparation and Use Thereof
0 cites
US11692426utility2023
Method and Apparatus for Determining Integrated Exploitation Approach of Shale and Adjacent Oil Reservoirs
0 cites
US11634961utility2023
Metal-based Dissolvable Ball Seat, Setting System and Setting Method
0 cites
US11629283utility2023
N,n,n′,n′-tetradodecyl-substituted Diphenyl Ether Sulfonate Anionic Gemini Surfactant and Synthesis Method Thereof
0 cites
US11565944utility2023
Process for Preparing Titanic Acid Salt, Titanic Acid, and Titanium Oxide Having Controllable Particle Size and Hierarchical Structure
0 cites
US11554966utility2023
Nanostructured Titanic Acid Salts and Preparation Process and Use Thereof
0 cites