Forward Citations = 0

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16 inventors (with patents filed for the assignee):

Yao Liu (1 out of 52 patents)

Gang Wang (1 out of 361 patents)

Yulong Shi (1 out of 54 patents)

4. Jiawei Wang (1 out of 9 patents)

5. Jiang Chang (1 out of 16 patents)

6. Jun Han (1 out of 5 patents)

7. Qi Xu (1 out of 4 patents)

8. Kuixiao Li (1 out of 2 patents)

9. Yongsheng Bai (1 out of 1 patent)

10. Bojun Su (1 out of 1 patent)

11. Huanhuan Wang (1 out of 2 patents)

12. Lixin Yu (1 out of 1 patent)

13. Luyuan Shi (1 out of 1 patent)

14. Haipeng Bao (1 out of 1 patent)

15. Fuliang Ma (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 12747176 - Electrochemical nitrogen and phosphorus removal device and method (2026-09-29),

2. 12623926 - Bidirectional flow pulse-based water body phosphorus removal apparatus and method, and organic nutrient soil (2026-05-12),

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

2 Patents

#873 in Beijing

#11,585 in China

Beijing, China

Beijing Drainage Group Co., Ltd

Forward Citations = 0

16 inventors:

Yao Liu (1 out of 52 patents)

Gang Wang (1 out of 361 patents)

Yulong Shi (1 out of 54 patents)

4. Jiawei Wang (1 out of 9 patents)

5. Jiang Chang (1 out of 16 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Beijing Drainage Group Co., Ltd. Retrieved from https://idiyas.com/company/beijing-drainage-group

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]