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For the Inventor, By the Inventor

Jiangsu, China

Nr Engineering Co., Ltd

USPTO Granted Patents = 59

% Expired Patents = 25.4



Forward Citations = 36

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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 18 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:
Converter Control
Voltage Coordination
Fault Management
Direct Current
Energy Acquisition
Protection Method
Hybrid Converter
Multi-Terminal
Power Transmission
Control Device
Synchronous Generator
Resistor

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),
Company Overview
Nr Engineering Co., Ltd, based in Jiangsu, China, specializes in the development and manufacturing of advanced direct current systems. The company focuses on key technological areas such as converter control, voltage coordination, and fault management, providing innovative solutions for energy acquisition and protection methods. With expertise in hybrid converters and multi-terminal systems, Nr Engineering is positioned to address the evolving needs of the energy sector, enhancing efficiency and reliability in power distribution.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

59 Patents

#12 in Jiangsu

#551 in China

#12,247 in the World

Jiangsu, CN
Jiangsu, China

Nr Engineering Co., Ltd

Forward Citations = 36

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)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nr Engineering Co., Ltd. Retrieved from https://idiyas.com/company/nr-engineering-company

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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