Beijing, China

Changqing Feng

This inventor holds 1 USPTO granted patent. Top assignee: Petrochina Company Limited. Active years: 2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Changqing Feng. Retrieved from https://idiyas.com/inventor/changqing-feng

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 10.0

ph-index = 1


Company Filing History:


Years Active: 2023

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1 patent (USPTO):Explore Patents

Title: Changqing Feng: Innovator in Metal-Based Dissolvable Technology

Introduction

Changqing Feng is a notable inventor based in Beijing, China. He has made significant contributions to the field of engineering, particularly with his innovative designs in dissolvable technology. His work is recognized for its practical applications in various industries.

Latest Patents

Changqing Feng holds a patent for a "Metal-based dissolvable ball seat, setting system and setting method." This invention features a metal-based dissolvable ball seat that includes a mandrel, a tail base, a sliding body, a slip, and a sealing ring. The mandrel can be disengaged from the tail base under a predefined shearing force. The sliding body is designed to sleeve the mandrel and is positioned above the tail base. The slip is located outside the mandrel and is slidably abutted against both the tail base and the sliding body. The design incorporates a first conical surface structure for the slip and sliding body, and a second conical surface structure for the slip and tail base. The sealing ring is movable along the axial direction of the mandrel with the slip. As the sliding body and tail base approach each other, the slip opens, allowing the sealing ring to expand outward.

Career Highlights

Changqing Feng is currently employed at Petrochina Company Limited, where he continues to develop innovative solutions in his field. His work has garnered attention for its potential to enhance operational efficiency and safety in various applications.

Collaborations

Changqing has collaborated with notable colleagues, including Xiaowei Xue and Jianguo Yao. Their combined expertise contributes to the advancement of technology within their industry.

Conclusion

Changqing Feng is a distinguished inventor whose work in metal-based dissolvable technology showcases his innovative spirit and dedication to engineering. His contributions are paving the way for advancements in various sectors.

Profile summary based on public USPTO records.
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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