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Weichai Power Co., Ltd.

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USPTO Granted Patents = 55

% Expired Patents = 7.3

EPO Patents = 27

Trademarks = 4

Forward Citations = 17

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158 inventors (with patents filed for the assignee):

Dehui Tong (12 out of 12 patents)

Xuguang Tan (11 out of 11 patents)

Guangdi Hu (6 out of 6 patents)

4. Fei Wang (6 out of 9 patents)

5. Shaojun Sun (5 out of 5 patents)

6. Bin Pang (5 out of 5 patents)

7. Wei Li (4 out of 40 patents)

8. Yuelan Zhong (4 out of 4 patents)

9. Wang Li (3 out of 3 patents)

10. Zhijie Li (3 out of 4 patents)

11. Shenggang Guo (3 out of 3 patents)

12. Ninglu Wang (3 out of 3 patents)

13. Hongshuang He (3 out of 3 patents)

14. Peng Zhou (3 out of 3 patents)

15. Xiaoxin Liu (3 out of 3 patents)

Core Competencies:

SCR System

Hybrid Power System

Combustion Control

Diesel Engine

Urea Injection

Cylinder Deactivation

Exhaust Aftertreatment

Gas Engine

Air Intake Intercooler

Variable Valve Mechanism

Power Split Transmission

Fuel Cell

55 patents: Sort by Forward Citations

1. 12503968 - SCR system and engine (2025-12-23),

2. 12467394 - Selective catalytic reduction (SCR) system and engine (2025-11-11),

3. 12359610 - Control method for an air intake intercooler that heats or cools intake air of an engine and a control system thereof (2025-07-15),

4. 12292011 - Cylinder deactivation control method and apparatus of engine, and engine (2025-05-06),

5. 12228093 - Airway structure, cylinder cover, and miller-profile engine (2025-02-18),

6. 12196161 - EGR mixing and adjusting apparatus and internal combustion engine (2025-01-14),

7. 12196151 - Control method for combustion system, combustion system and engine (2025-01-14),

8. 12188423 - Cylinder deactivation control method and apparatus of engine, and engine (2025-01-07),

9. 12180904 - Control method for combustion system, combustion system, and diesel engine (2024-12-31),

10. 12152520 - Urea pump, and control method and control system for urea pump (2024-11-26),

11. 12145568 - Control method and system for hybrid power system (2024-11-19),

12. 12134995 - Method for controlling combustion system, combustion system, and internal combustion engine (2024-11-05),

13. 12109533 - Urea tank for SCR aftertreatment system, and tank cover thereof (2024-10-08),

14. 12104510 - Method for detecting urea consumption deviation, and vehicle post-processing system (2024-10-01),

15. 12085039 - Composite coating, piston, engine and vehicle (2024-09-10),

Company Overview

Weichai Power Co., Ltd., headquartered in Weifang, China, is a leading manufacturer specializing in internal combustion engines and related technologies. The company focuses on developing advanced systems such as SCR (Selective Catalytic Reduction), hybrid power systems, and combustion control technologies. Weichai's expertise extends to diesel and gas engines, urea injection systems, cylinder deactivation, and exhaust aftertreatment solutions, positioning it as a key player in the automotive and energy sectors, both domestically and internationally.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

55 Patents

#2 in Weifang

#590 in China

#12,945 in the World

Weichai Power Co., Ltd.

Forward Citations = 17

158 inventors:

Dehui Tong (12 out of 12 patents)

Xuguang Tan (11 out of 11 patents)

Guangdi Hu (6 out of 6 patents)

4. Fei Wang (6 out of 9 patents)

5. Shaojun Sun (5 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Weichai Power Co., Ltd.. Retrieved from https://idiyas.com/company/weichai-power-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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