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Welead Infrastructure Engineering Technology (Zhengzhou), Ltd.

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USPTO Granted Patents = 15

Forward Citations = 1

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20 inventors (with patents filed for the assignee):

Hongyuan Fang (15 out of 25 patents)

Peng Zhao (15 out of 24 patents)

Yanhui Pan (14 out of 21 patents)

4. Fuming Wang (13 out of 24 patents)

5. Bin Li (8 out of 17 patents)

6. Hang He (7 out of 7 patents)

7. Chengchao Guo (5 out of 10 patents)

8. Xianfeng Zhao (3 out of 9 patents)

9. Yingli Wang (2 out of 4 patents)

10. Guobin Qiao (2 out of 3 patents)

11. Kejie Zhai (1 out of 1 patent)

12. Zhihui Jia (1 out of 1 patent)

13. Hui Liu (1 out of 3 patents)

14. Jianwei Lei (1 out of 3 patents)

15. Zongsheng Lu (1 out of 1 patent)

15 patents: Sort by Forward Citations

1. 11970564 - Structural flame retardant high strength low exothermic polymer grouting material for consolidating (2024-04-30),

2. 11708933 - Pipeline radar and television inspection robot (2023-07-25),

3. 11585467 - Trenchless methods for forming curved hole channel with steel sleeve and pipeline lifting (2023-02-21),

4. 11473713 - Trenchless integrative repair method for concrete drainage pipeline with cracking, corrosion and subsidence (2022-10-18),

5. 11346487 - Support tool and back-pressure grouting device for leakage repair of inspection well and repair method thereof (2022-05-31),

6. 11319690 - Assembled recyclable rectangular working well with preset detachable door opening and construction method thereof (2022-05-03),

7. 11274784 - In-service repair method combining externally bonded pre-stressed FRP and polymer grouting for PCCP with broken wire (2022-03-15),

8. 11231139 - Detecting and repairing method for external diseases of buried drainage pipeline (2022-01-25),

9. 11149400 - Thin-slotting lifting synchronous grouting device and its usage method (2021-10-19),

10. 11149399 - Track-type jet grouting integrated system (2021-10-19),

11. 11143027 - Rectangular working well with preset pipe jacking hole and sliding back wall in water-rich stratum and construction method thereof (2021-10-12),

12. 11085166 - Composite slotting equipment combined static pressure and vibration of polymer anti-seepage wall and using method thereof (2021-08-10),

13. 11079057 - Trenchless rehabilitation device for disconnects on large-diameter concrete drainage pipe and method thereof (2021-08-03),

14. 11002398 - Trenchless rehabilitation system for deformation of large diameter HDPE pipelines and method thereof (2021-05-11),

15. 10907761 - In-service and trenchless repair method for disconnection of drainage pipeline (2021-02-02),

Company Overview

Welead Infrastructure Engineering Technology (Zhengzhou), Ltd. specializes in advanced engineering solutions, focusing on infrastructure development and construction technology. The company is dedicated to enhancing the efficiency and sustainability of infrastructure projects through innovative design and engineering practices. With a strong emphasis on research and development, Welead aims to contribute to the modernization of infrastructure in Henan and beyond, leveraging cutting-edge technologies to meet evolving industry demands.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

15 Patents

#4 in Henan

#1,928 in China

#39,991 in the World

Welead Infrastructure Engineering Technology (Zhengzhou), Ltd.

Forward Citations = 1

20 inventors:

Hongyuan Fang (15 out of 25 patents)

Peng Zhao (15 out of 24 patents)

Yanhui Pan (14 out of 21 patents)

4. Fuming Wang (13 out of 24 patents)

5. Bin Li (8 out of 17 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Welead Infrastructure Engineering Technology (Zhengzhou), Ltd.. Retrieved from https://idiyas.com/company/welead-infrastructure-engineering-technology-zhengzhou

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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