Zhiwei Ding

5 Patents

• US124973312025

  High-strength Portland Cement Slurry for Ultra-high Temperature Cementing, Preparation Method Therefor and Application Thereof

  CNPC Engineering Technology R&D Company Limited

  0 cites
• US123325262025

  Display Substrate, Display Panel and Display Device

  BOE Technology Group Co., Ltd.

  0 cites
• US123051162025

  Ultra-high Temperature Resistant Cement Slurry System for Cementing and Preparation Method and Use Thereof

  Beijing Huamei Inc. CNPC

  0 cites
• US119267872024

  Well Cementing Method for Improving Well Cementing Quality by Controlling Hydration Heat of Cement Slurry

  CNPC Engineering Technology R&D Company Limited

  0 cites
• US116188442023

  High Temperature Resistant Portland Cement Slurry and Production Method Thereof

  CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED

  0 cites