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Panzhihua, China

Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd.

USPTO Granted Patents = 17

CIPO Patents = 14

EPO Patents = 6

Forward Citations = 3

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82 inventors (with patents filed for the assignee):

Yong Deng (8 out of 9 patents)

Ming Zou (7 out of 9 patents)

Jun Yuan (6 out of 7 patents)

4. Zhenyu Han (5 out of 6 patents)

5. Hua Guo (5 out of 7 patents)

6. Quan Xu (4 out of 6 patents)

7. Chunjian Wang (4 out of 4 patents)

8. Jihai Jia (3 out of 3 patents)

9. Dadong Li (3 out of 3 patents)

10. Dongsheng Mei (3 out of 4 patents)

11. Zhefeng Xu (3 out of 4 patents)

12. Yong Chen (2 out of 5 patents)

13. Chongmu Chen (2 out of 2 patents)

14. Yuan Wang (2 out of 2 patents)

15. Yilin Zhou (2 out of 2 patents)

17 patents: Sort by Forward Citations

1. 12486549 - Moderate-strength steel rail and production method thereof (2025-12-02),

2. 12378649 - Method for producing hypereutectoid steel rail resistant to contact fatigue (2025-08-05),

3. 11866801 - Method for optimizing microstructure of rail welded joint (2024-01-09),

4. 11655514 - Deeply-hardened-surface turnout rail with high degree of undercooling and the preparation method thereof (2023-05-23),

5. 11466333 - Continuous hot rolled coil for high collapse-resistant sew petroleum casing and manufacturing method thereof (2022-10-11),

6. 10214799 - Heat treatment method for increasing the depth of hardening layer in a steel rail and steel rail obtained with the method (2019-02-26),

7. 10196781 - Hypereutectoid steel rail and preparation method thereof (2019-02-05),

8. 9963796 - Method of producing titanium metal with titanium-containing material (2018-05-08),

9. 9777351 - Method for heat treatment of hypereutectoid steel rail (2017-10-03),

10. 9765414 - Heat treatment method of turnout track and the turnout track (2017-09-19),

11. 9394581 - Heat treatment method for bainitic turnout rail (2016-07-19),

12. 9314733 - Method for detecting loss of desulfurization organic components and regenerable flue gas desulfurization process (2016-04-19),

13. 9181447 - Metal protection coating, hot-dip Zn metallic material and hot-dip Al—Zn metallic material using the same (2015-11-10),

14. 9115412 - Method of manufacturing direct reduction iron and reduction firing apparatus (2015-08-25),

15. 8742000 - Preparation method of hot dip galvanized sheet anti-corrosive treatment agent of environmental protective (2014-06-03),

PanGang Group Panzhihua Iron & Steel Research Institute Co., Ltd. is a leading metal research and development institute in China, with expertise in the iron and steel industry. Established in 1953, the company focuses on technological innovations, product development, and metal testing services. They work closely with PanGang Group, one of the largest steel producers in China, to enhance product quality and explore advanced steel manufacturing techniques. With a commitment to sustainable development, the company strives to drive progress in the iron and steel industry through cutting-edge research and collaborative partnerships.

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USPTO Data Jan 1 1976 - Dec 9 2025

17 Patents

#1 in Panzhihua

#1,499 in China

#34,819 in the World

Panzhihua, China

Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd.

Forward Citations = 3

82 inventors:

Yong Deng (8 out of 9 patents)

Ming Zou (7 out of 9 patents)

Jun Yuan (6 out of 7 patents)

4. Zhenyu Han (5 out of 6 patents)

5. Hua Guo (5 out of 7 patents)

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