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Petrochina Company Limited

USPTO Granted Patents = 161

CIPO Patents = 1

EPO Patents = 37

Trademarks = 7

Forward Citations = 153

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886 inventors (with patents filed for the assignee):

Haitao Zhang (12 out of 60 patents)

Pingmei Wang (11 out of 11 patents)

Xionghou Gao (11 out of 11 patents)

4. Jianjun Yi (11 out of 11 patents)

5. Ning Li (10 out of 53 patents)

6. Hongliang Wu (10 out of 11 patents)

7. Kewen Wang (10 out of 12 patents)

8. Bin Ding (10 out of 10 patents)

9. Jianhui Luo (10 out of 10 patents)

10. Zhou Feng (9 out of 10 patents)

11. Xiangfei Geng (9 out of 9 patents)

12. Hongchang Duan (9 out of 9 patents)

13. Qingfu Feng (8 out of 8 patents)

14. Di Li (8 out of 21 patents)

15. Baoliang Peng (8 out of 8 patents)

Core Competencies:

Solid Drag Reducer

Shale Oil Exploitation

Gas Flow Control Valve

Carbon-Dioxide-Responsive Fluid

Nanotube Lithium Titanate

Permeability-Enhancing Flooding

Dissolvable Ball Seat

Seismic Horizon Tracking

Corrosion Inhibitor

Microbubble Generation

Gas Reservoir Recovery

Catalytic Cracking Catalyst

161 patents: Sort by Forward Citations

1. 12509985 - Oil well optical fiber multi-parameter testing method and apparatus (2025-12-30),

2. 12503523 - Catalyst composition for polymerization of α-olefin and preparation and use thereof (2025-12-23),

3. 12331601 - Device and method for continuous mixing of solid drag reducer (2025-06-17),

4. 12163410 - Method and apparatus for predicting optimal exploitation in shale oil in-situ conversion (2024-12-10),

5. 12117584 - Device and method for determining original stratum direction of core (2024-10-15),

6. 12098783 - Gas flow control valve and mounting method for gas flow control valve (2024-09-24),

7. 12038344 - Phase power device and fluid experiment system (2024-07-16),

8. 11994011 - Permanent packer and extended gas lift method using permanent packer (2024-05-28),

9. 11952536 - Carbon-dioxide-responsive self-thickening intelligent fluid based on supramolecular self-assembly (2024-04-09),

10. 11946349 - Downhole throttling device based on wireless control (2024-04-02),

11. 11926787 - Well cementing method for improving well cementing quality by controlling hydration heat of cement slurry (2024-03-12),

12. 11858827 - Preparation method of a nanotube hierarchically structured lithium titanate and use and product thereof (2024-01-02),

13. 11802233 - Permeability-enhancing flooding system for tight oil reservoirs, and preparation and use thereof (2023-10-31),

14. 11692426 - Method and apparatus for determining integrated exploitation approach of shale and adjacent oil reservoirs (2023-07-04),

15. 11634961 - Metal-based dissolvable ball seat, setting system and setting method (2023-04-25),

PetroChina is a leading integrated energy and chemical company based in Beijing, China. It is the largest oil and gas producer and distributor in China, having a significant presence in exploration, refining, marketing, and petrochemicals sectors. With a strong focus on sustainable development and technological innovation, PetroChina strives to fulfill the energy needs of the nation while contributing to global energy security.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

161 Patents

#34 in Beijing

#192 in China

#4,982 in the World

Petrochina Company Limited

Forward Citations = 153

886 inventors:

Haitao Zhang (12 out of 60 patents)

Pingmei Wang (11 out of 11 patents)

Xionghou Gao (11 out of 11 patents)

4. Jianjun Yi (11 out of 11 patents)

5. Ning Li (10 out of 53 patents)

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