Forward Citations = 0

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61 inventors (with patents filed for the assignee):

Gongrang Li (3 out of 3 patents)

Wenbo Li (2 out of 167 patents)

Kai Gao (2 out of 7 patents)

4. Bingxiang Sun (2 out of 2 patents)

5. Ke Li (2 out of 7 patents)

6. Lei Yu (2 out of 3 patents)

7. Xudong Wang (2 out of 2 patents)

8. Jianghong Jia (2 out of 2 patents)

9. Hui Tian (2 out of 2 patents)

10. Chengjun Wang (2 out of 2 patents)

11. Zhonghua Wu (2 out of 2 patents)

12. Guosheng Yang (1 out of 1 patent)

13. Zhihua Zhang (1 out of 1 patent)

14. Yong Liao (1 out of 1 patent)

15. Liang Ye (1 out of 1 patent)

6 patents: Sort by Forward Citations

1. 12559469 - Cyclic thioether compound, vegetable oil composition containing the same, their preparation and application thereof (2026-02-24),

2. 12516581 - Coring tool, coring method, and application thereof (2026-01-06),

3. 12480372 - Positioning and orientating apparatus for branch well, and positioning and orientating method (2025-11-25),

4. 12291668 - Coated rubber particle, its preparation and application thereof (2025-05-06),

5. 11359466 - Perforating device for horizontal wells (2022-06-14),

6. 9938445 - Comb polymer, method of preparing the same, and use thereof (2018-04-10),

Company Overview

Sinopec Oilfield Service Corporation, a subsidiary of Sinopec Limited, provides a wide range of oilfield services including drilling, well completion, and production enhancement. Established to support the oil and gas industry, the company leverages advanced technology and expertise to optimize resource extraction and enhance operational efficiency. With a strong presence in both domestic and international markets, Sinopec Oilfield Service Corporation is committed to sustainable development and innovation in energy services.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

6 Patents

#425 in Beijing

#4,454 in China

Beijing, China

Sinopec Oilfield Service Corporation

Forward Citations = 0

61 inventors:

Gongrang Li (3 out of 3 patents)

Wenbo Li (2 out of 167 patents)

Kai Gao (2 out of 7 patents)

4. Bingxiang Sun (2 out of 2 patents)

5. Ke Li (2 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sinopec Oilfield Service Corporation. Retrieved from https://idiyas.com/company/sinopec-oilfield-service

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]