Qinhuangdao, China

Haifeng Liu

This inventor holds 3 USPTO granted patents and 1 published patent application. Top assignees: Citic Dicastal Co., Ltd, Citic Co., Limited. Active years: 2023-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Haifeng Liu. Retrieved from https://idiyas.com/inventor/haifeng-liu-opqcpe2l

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

Calculating rank
USPTO Granted Patents = 3 

% Patents Active = 100.0

Average Co-Inventor Count = 5.0

ph-index = 1


Company Filing History:


Years Active: 2023-2025

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3 patents (USPTO):Explore Patents

Title: Haifeng Liu: Innovator in Aluminum Alloy Casting

Introduction

Haifeng Liu is a notable inventor based in Qinhuangdao, China. He has made significant contributions to the field of aluminum alloy casting, holding a total of 3 patents. His innovative approaches have enhanced the efficiency and effectiveness of casting processes.

Latest Patents

One of Liu's latest patents is the "Preparation method for aluminum alloy cavity casting filled with special-shaped foamed aluminum." This invention discloses a method that involves preparing special-shaped foamed aluminum using a powder metallurgy foaming method. The process includes fixing the foamed aluminum in a second mold after coating it with soldering flux, followed by casting with molten aluminum alloy. This method improves the overall strength of the casting while reducing its wall thickness, ensuring that the overall quality remains unchanged.

Another significant patent is the "Riser tube coating for cast aluminum alloy and using method thereof." This invention features a coating that includes a contact layer material for both the riser tube and the aluminum liquid. The design focuses on maximizing coating protection by optimizing the ratios of various materials, including ZrO, AlO, and ZnO. This innovation effectively protects the riser tube, prevents aluminum sticking, and extends the service life of the components.

Career Highlights

Haifeng Liu has worked with prominent companies such as Citic Dicastal Co., Ltd and Citic Co., Limited. His experience in these organizations has allowed him to apply his innovative ideas in practical settings, contributing to advancements in aluminum alloy casting technologies.

Collaborations

Liu has collaborated with talented individuals in his field, including coworkers Xing Han and Yu Sun. Their joint efforts have likely fostered a creative environment that encourages innovation and the development of new technologies.

Conclusion

Haifeng Liu's contributions to aluminum alloy casting through his patents and career achievements highlight his role as an influential inventor. His work continues to impact the industry positively, showcasing the importance of innovation in manufacturing processes.

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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