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For the Inventor, By the Inventor

Jiangsu, China

Nr Engineering Co., Ltd


USPTO Granted Patents = 59



Forward Citations = 35

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124 inventors (with patents filed for the assignee):

goldMedal Yunlong Dong (27 out of 29 patents)

silverMedal Yu Lu (23 out of 28 patents)

bronzeMedal Jie Tian (22 out of 28 patents)

4.  Haiying Li (21 out of 23 patents)

5.  Dongming Cao (20 out of 20 patents)

6.  Nannan Wang (14 out of 14 patents)

7.  Zhaoqing Hu (13 out of 13 patents)

8.  Gang Li (13 out of 17 patents)

9.  Taixun Fang (11 out of 11 patents)

10.  Yeyuan Xie (9 out of 9 patents)

11.  Jiudong Ding (8 out of 8 patents)

12.  Jiang Lu (8 out of 8 patents)

13.  Yongping Wang (7 out of 9 patents)

14.  Tiangui Jiang (7 out of 7 patents)

15.  Xiang Zhang (7 out of 11 patents)


Core Competencies:
Transformer Protection
Converter Control
Direct Current Transmission
Voltage Source Converter
Hybrid Converter
Fault Positioning
Energy Acquisition Circuit
Multi-Terminal HVDC
Regenerative Energy Feedback
Thyristor Valve Testing
Impedance Protection
Series Compensation

59 patents:

1. 11881700 - Longitudinal differential protection method of transformer (2024-01-23),
2. 11374411 - Converter control method and device (2022-06-28),
3. 11355932 - Control system and control method for parallel converter system (2022-06-07),
4. 11342744 - Multi-voltage level direct current grid system and control protection method (2022-05-24),
5. 11329486 - Method for initiating flexible DC transmission system under isolated island condition (2022-05-10),
6. 11289905 - Voltage and current control method and device for direct-current power transmission system (2022-03-29),
7. 11264891 - Redundant energy acquisition circuit of power module, and control method thereof (2022-03-01),
8. 11264794 - Series compensator and control method (2022-03-01),
9. 11264793 - Method and device for quickly eliminating ferromagnetic resonance of voltage transformer (2022-03-01),
10. 11223291 - Bipolar bidirectional DC converter, and control method and control device therefor (2022-01-11),
11. 11190020 - Direct current voltage coordination control method (2021-11-30),
12. 11146071 - Coordinated control method and device for series voltage source converter valve group (2021-10-12),
13. 11063424 - Adaptive protection method for impedance of parallel capacitors (2021-07-13),
14. 11009542 - Thyristor valve test system based on cooperation of logical functions of software (2021-05-18),
15. 10965114 - Method and apparatus for suppressing impact of compensator on line distance protection (2021-03-30),
NR Engineering Co., Ltd is a leading engineering company specializing in providing innovative solutions for various industries. With a strong team of experienced engineers and technicians, we are capable of delivering high-quality engineering services. Our expertise includes product design and development, process optimization, automation systems, and project management. Visit our website to learn more about our services and to explore our past projects.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

59 Patents

#12 in Jiangsu

#498 in China

#11,836 in the World

...
Jiangsu, China

Nr Engineering Co., Ltd

Forward Citations = 35

124 inventors:

goldMedal Yunlong Dong (27 out of 29 patents)

silverMedal Yu Lu (23 out of 28 patents)

bronzeMedal Jie Tian (22 out of 28 patents)

4.  Haiying Li (21 out of 23 patents)

5.  Dongming Cao (20 out of 20 patents)

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