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Hangzhou, China

Powerchina Huadong Engineering Corporation Limited

USPTO Granted Patents = 23

EPO Patents = 2

Forward Citations = 14

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107 inventors (with patents filed for the assignee):

Zhigang Shan (5 out of 6 patents)

Miaojun Sun (4 out of 6 patents)

Jing Hou (4 out of 10 patents)

4. Huafeng Yu (3 out of 3 patents)

5. Haifeng Qi (3 out of 5 patents)

6. Chunlin Huang (3 out of 3 patents)

7. Chunsheng Zhang (3 out of 4 patents)

8. Xingjian Sun (3 out of 3 patents)

9. Shengxiao Zhao (2 out of 3 patents)

10. Qunyi Tang (2 out of 2 patents)

11. Zhenzhou Sun (2 out of 2 patents)

12. Dongliang Zhang (2 out of 3 patents)

13. Xianlin Jia (2 out of 2 patents)

14. Baofeng Zhang (2 out of 2 patents)

15. Gen Xiong (2 out of 2 patents)

23 patents: Sort by Forward Citations

1. 12723360 - Riparian zone of reservoir (2026-09-01),

2. 12435588 - Rapid assembly and automatic sampling drilling tool for frozen soil layer exploration (2025-10-07),

3. 12325013 - One-step method for preparing magnetic magnesium-iron layered double hydroxide (LDH)-biochar composite material and use thereof (2025-06-10),

4. 12037907 - Hypergravity model test device and method for simulating progressive failure of shield tunnel face (2024-07-16),

5. 11788409 - Auto-collapsible pore pressure probe device and operating method thereof (2023-10-17),

6. 11645842 - Method for tracing pollution at drainage outlet of culvert (2023-05-09),

7. 11555480 - Prestressed-bolted dry-assembled segmental precast hybrid tower with grouting-free (2023-01-17),

8. 11058971 - Oil-water separator for offshore wind farm (2021-07-13),

9. 11035091 - Transportation device for offshore platforms and method for installing the same (2021-06-15),

10. 11008242 - Deep sludge dewatering method using electroosmosis with filter bags (2021-05-18),

11. 10853537 - Model test system for seabed seismic wave detection and method thereof (2020-12-01),

12. 10716296 - Floating offshore wind turbine integrated with steel fish farming cage (2020-07-21),

13. 10684111 - Non-destructive detection method and device of effective anchorage depth of full-length bonding anchor (2020-06-16),

14. 10381671 - Method for removing pentavalent antimony contaminants in water and fuel cell (2019-08-13),

15. 10378172 - Yieldable construction method for early releasing surrounding rock deformation on weak counter-inclined slope (2019-08-13),

Company Overview

Powerchina Huadong Engineering Corporation Limited is a prominent engineering and construction firm based in Hangzhou, China. The company specializes in a wide array of sectors, including water conservancy, hydropower, and infrastructure development. With a strong emphasis on sustainable engineering practices, it engages in the design, consultation, and management of large-scale projects. Powerchina Huadong is recognized for its innovative approaches in civil engineering and its commitment to enhancing regional development through advanced technology and expertise.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

23 Patents

#35 in Hangzhou

#1,288 in China

#27,685 in the World

Hangzhou, China

Powerchina Huadong Engineering Corporation Limited

Forward Citations = 14

107 inventors:

Zhigang Shan (5 out of 6 patents)

Miaojun Sun (4 out of 6 patents)

Jing Hou (4 out of 10 patents)

4. Huafeng Yu (3 out of 3 patents)

5. Haifeng Qi (3 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Powerchina Huadong Engineering Corporation Limited. Retrieved from https://idiyas.com/company/powerchina-huadong-engineering

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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