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Nr Electric Co., Ltd

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USPTO Granted Patents = 70

% Expired Patents = 21.4

CIPO Patents = 6

EPO Patents = 44

Forward Citations = 45

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165 inventors (with patents filed for the assignee):

Yunlong Dong (29 out of 29 patents)

Yu Lu (25 out of 28 patents)

Jie Tian (25 out of 28 patents)

4. Haiying Li (23 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. Yongping Wang (9 out of 9 patents)

12. Jiudong Ding (8 out of 8 patents)

13. Jiang Lu (8 out of 8 patents)

14. Tiangui Jiang (7 out of 7 patents)

15. Xiang Zhang (7 out of 11 patents)

Core Competencies:

Voltage Control

Converter Control

Fault Protection

Hybrid Systems

Multi-Terminal

DC Transmission

Power Flow

Current Limiting

Transformer Protection

Energy Feedback

Compensation Technology

Embedded Systems

70 patents: Sort by Forward Citations

1. 12094191 - Monitoring system and method based on digital converter station (2024-09-17),

2. 11881700 - Longitudinal differential protection method of transformer (2024-01-23),

3. 11753843 - Valve tower reinforcing structure and reinforcing method (2023-09-12),

4. 11422204 - Method for detecting open phase of startup/standby transformer based on optical CT (2022-08-23),

5. 11374411 - Converter control method and device (2022-06-28),

6. 11355932 - Control system and control method for parallel converter system (2022-06-07),

7. 11342744 - Multi-voltage level direct current grid system and control protection method (2022-05-24),

8. 11329486 - Method for initiating flexible DC transmission system under isolated island condition (2022-05-10),

9. 11289905 - Voltage and current control method and device for direct-current power transmission system (2022-03-29),

10. 11264891 - Redundant energy acquisition circuit of power module, and control method thereof (2022-03-01),

11. 11264794 - Series compensator and control method (2022-03-01),

12. 11264793 - Method and device for quickly eliminating ferromagnetic resonance of voltage transformer (2022-03-01),

13. 11223291 - Bipolar bidirectional DC converter, and control method and control device therefor (2022-01-11),

14. 11190020 - Direct current voltage coordination control method (2021-11-30),

15. 11146071 - Coordinated control method and device for series voltage source converter valve group (2021-10-12),

Company Overview

Nr Electric Co., Ltd, headquartered in Nanjing, China, specializes in advanced technologies for direct current transmission systems. The company focuses on critical areas such as voltage control, converter control, and fault protection, contributing to the development of hybrid systems and multi-terminal DC transmission solutions. With a commitment to enhancing power flow and current limiting capabilities, Nr Electric plays a significant role in the evolution of modern energy infrastructure, addressing the growing demands for efficient and reliable power transmission.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

70 Patents

#8 in Nanjing

#476 in China

#10,653 in the World

Nr Electric Co., Ltd

Forward Citations = 45

165 inventors:

Yunlong Dong (29 out of 29 patents)

Yu Lu (25 out of 28 patents)

Jie Tian (25 out of 28 patents)

4. Haiying Li (23 out of 23 patents)

5. Dongming Cao (20 out of 20 patents)

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