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Cnpc Engineering Technology R&d Company Limited

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USPTO Granted Patents = 22

% Expired Patents = 22.7

EPO Patents = 1

Forward Citations = 10

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179 inventors (with patents filed for the assignee):

Jianzhou Jin (8 out of 8 patents)

Yongjin Yu (8 out of 8 patents)

Fengzhong Qi (6 out of 6 patents)

4. Ming Xu (5 out of 135 patents)

5. Shuoqiong Liu (5 out of 5 patents)

6. Zishuai Liu (5 out of 5 patents)

7. Yuchao Guo (5 out of 5 patents)

8. Chi Zhang (5 out of 36 patents)

9. Congfeng Qu (5 out of 5 patents)

10. Long Li (4 out of 8 patents)

11. Tao Jia (4 out of 12 patents)

12. Mingjie Lv (4 out of 4 patents)

13. Zhiwei Ding (4 out of 5 patents)

14. Chongfeng Zhou (4 out of 4 patents)

15. Wei Liu (4 out of 83 patents)

22 patents: Sort by Forward Citations

1. 12736448 - Set cement mechanical properties parameter measurement method and apparatus based on image recognition technology (2026-09-15),

2. 12612856 - Lost circulation detection device (2026-04-28),

3. 12497331 - High-strength Portland cement slurry for ultra-high temperature cementing, preparation method therefor and application thereof (2025-12-16),

4. 12448885 - Mud pressure wave signal modulation apparatus and method (2025-10-21),

5. 12391861 - Cement slurry system, preparation method therefor and use thereof (2025-08-19),

6. 12305116 - Ultra-high temperature resistant cement slurry system for cementing and preparation method and use thereof (2025-05-20),

7. 12146095 - pH-responsive nano-gel plugging material, and preparation method therefor and use thereof (2024-11-19),

8. 11959375 - Method for evaluating downhole working condition of a PDC bit (2024-04-16),

9. 11926787 - Well cementing method for improving well cementing quality by controlling hydration heat of cement slurry (2024-03-12),

10. 11787990 - Bionic and dual-phobic high-performance water-based drilling fluid (2023-10-17),

11. 11686190 - 4D quantitative and intelligent diagnosis method and system for spatio-temporal evolution of oil-gas reservoir damage types and extent (2023-06-27),

12. 11618844 - High temperature resistant Portland cement slurry and production method thereof (2023-04-04),

13. 11293254 - Expansion tool assembly for expandable tubular (2022-04-05),

14. 11060009 - Filtrate reducer for temperature-resistant calcium-resistant water-based drilling fluid used in oil and gas reservoir protection, drilling fluid, and uses thereof (2021-07-13),

15. 11053424 - Temperature-resistant calcium-resistant water-based drilling fluid for oil and gas reservoir protection and use thereof (2021-07-06),

Company Overview

Cnpc Engineering Technology R&D Company Limited, based in Beijing, specializes in engineering technology and research and development within the energy sector. The company focuses on innovative solutions for oil and gas exploration, production, and refining processes. With a commitment to advancing technology, it engages in various research domains, including materials science, automation, and environmental protection, contributing to the efficiency and sustainability of energy operations in China and beyond.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

22 Patents

#164 in Beijing

#1,333 in China

#28,836 in the World

Cnpc Engineering Technology R&d Company Limited

Forward Citations = 10

179 inventors:

Jianzhou Jin (8 out of 8 patents)

Yongjin Yu (8 out of 8 patents)

Fengzhong Qi (6 out of 6 patents)

4. Ming Xu (5 out of 135 patents)

5. Shuoqiong Liu (5 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Cnpc Engineering Technology R&d Company Limited. Retrieved from https://idiyas.com/company/cnpc-engineering-technology-r-and-d-company

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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