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Zhengzhou, China

Sf Diamond Co., Ltd.

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USPTO Granted Patents = 20

Forward Citations = 77

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23 inventors (with patents filed for the assignee):

Weifeng Du (18 out of 18 patents)

Yongfeng Wang (16 out of 16 patents)

Haijiang Fang (16 out of 16 patents)

4. Jian Yang (8 out of 8 patents)

5. Dongpeng Zhao (7 out of 9 patents)

6. Haijang Fang (3 out of 4 patents)

7. Tongjian Niu (2 out of 2 patents)

8. Shanshan Ma (1 out of 1 patent)

9. Caili Wang (1 out of 1 patent)

10. Saifei Yang (1 out of 1 patent)

11. Chunlin Zhang (1 out of 1 patent)

12. Tengfei Wen (1 out of 1 patent)

13. Shaohe Zhang (1 out of 2 patents)

14. Yulu Li (1 out of 2 patents)

15. Jincheng Li (1 out of 2 patents)

20 patents: Sort by Forward Citations

1. 12508650 - Polycrystalline diamond composite sheet having continuous gradient transition layer and preparation method thereof (2025-12-30),

2. D1068884 - Polycrystalline diamond compact with a raised parallelogram surface and a groove formed therein (2025-04-01),

3. D1057780 - Polycrystalline diamond compact with a tripartite raised surface (2025-01-14),

4. D1057779 - Polycrystalline diamond compact with a raised surface and groove therein (2025-01-14),

5. 12168608 - Polycrystalline diamond compact table with polycrystalline diamond extensions therefrom (2024-12-17),

6. 12103853 - Polycrystalline diamond compact table with polycrystalline diamond extensions therefrom (2024-10-01),

7. D1026981 - Polycrystalline diamond compact with a tripartite raised surface (2024-05-14),

8. D1026980 - Polycrystalline diamond compact with a raised surface and groove therein (2024-05-14),

9. 11873684 - Polycrystalline diamond compact (2024-01-16),

10. D1006074 - Polycrystalline diamond compact with a raised triangular structure (2023-11-28),

11. D1006073 - Polycrystalline diamond compact with a raised surface sloping to a peripheral extension (2023-11-28),

12. 11772977 - Polycrystalline diamond compact table with polycrystalline diamond extensions therefrom (2023-10-03),

13. D997219 - Polycrystalline diamond compact with a double-layer structure (2023-08-29),

14. D989827 - Drill bit (2023-06-20),

15. D989826 - Drill bit (2023-06-20),

Company Overview

Sf Diamond Co., Ltd. is a prominent manufacturer based in Zhengzhou, China, specializing in the development and production of high-quality diamond tools and materials. The company focuses on innovative solutions for various industries, including construction, mining, and manufacturing, leveraging advanced technology to enhance performance and efficiency. With a commitment to research and development, Sf Diamond aims to meet the evolving needs of its global clientele while maintaining high standards of quality and sustainability.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

20 Patents

#4 in Zhengzhou

#1,481 in China

#31,315 in the World

Zhengzhou, China

Sf Diamond Co., Ltd.

Forward Citations = 77

23 inventors:

Weifeng Du (18 out of 18 patents)

Yongfeng Wang (16 out of 16 patents)

Haijiang Fang (16 out of 16 patents)

4. Jian Yang (8 out of 8 patents)

5. Dongpeng Zhao (7 out of 9 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sf Diamond Co., Ltd.. Retrieved from https://idiyas.com/company/sf-diamond-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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