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22 inventors (with patents filed for the assignee):

Yongli Sun (4 out of 4 patents)

Pengfeng Li (4 out of 4 patents)

Xingcan Zheng (3 out of 3 patents)

4. Yan Wang (3 out of 9 patents)

5. Lin Wei Yang (3 out of 28 patents)

6. Wenxue Gao (3 out of 3 patents)

7. Yingjie Hu (3 out of 3 patents)

8. Rongsong Yan (3 out of 3 patents)

9. Qingwei Miao (3 out of 3 patents)

10. Wei Shang (2 out of 2 patents)

11. Yaxiong Wang (2 out of 2 patents)

12. Mingchang Yang (2 out of 2 patents)

13. Min Yang (2 out of 2 patents)

14. Kejian Sui (2 out of 2 patents)

15. Bo Fan (1 out of 4 patents)

7 patents: Sort by Forward Citations

1. 12405032 - Optimal operation control method of air-source heat pump and gas-fired heater combined heating system (2025-09-02),

2. 12208345 - Large-flux ultra-fine grid system with non-rotating screen plates (2025-01-28),

3. 12197833 - Performance evaluation method of LNG ambient air vaporizer (2025-01-14),

4. 12098868 - Control method for hydrogen-fueled domestic gas water heater (2024-09-24),

5. 11932564 - System and method for extracting carbon source from sewage sludge in sewer pipes through online organic and inorganic component separation (2024-03-19),

6. 11760659 - System and process for separating sand and gravel in sediments of sewage pipe network and recycling organic matters (2023-09-19),

7. 11739015 - Low-carbon nitrogen and phosphorus removal system and process for sewage treatment (2023-08-29),

North China Municipal Engineering Design & Research Institute Co., Ltd. is a leading engineering design and research company based in China. With a focus on municipal engineering projects, the company offers innovative solutions in urban planning, environmental protection, and infrastructure development. Their expertise and dedication to quality have earned them a strong reputation in the industry.

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Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

7 Patents

#41 in Tianjin

#3,405 in China

Tianjin, China

North China Municipal Engineering Design & Research Institute Co., Ltd.