Shanghai, China

Sijun Li

This inventor holds 1 USPTO granted patent and 5 published patent applications. Top assignee: Sabic Global Technologies B.v.. Active years: 2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sijun Li. Retrieved from https://idiyas.com/inventor/sijun-li-3hrmeu8u

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

Calculating rank
USPTO Granted Patents = 1 

% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 1


Company Filing History:


Years Active: 2025

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1 patent (USPTO):Explore Patents

Title: Sijun Li - Innovator in Infrared Transparent Polycarbonate Composition

Introduction

Sijun Li is a notable inventor based in Shanghai, China. He has made significant contributions to the field of materials science, particularly with his innovative work on polycarbonate compositions. His expertise and creativity have led to the development of a unique patent that addresses specific needs in infrared transparency.

Latest Patents

Sijun Li holds a patent for an infrared transparent polycarbonate composition. This invention comprises polycarbonate, an acid stabilizer, and at least one anthraquinone-based colorant with a hydroxyl group. The composition achieves a transmission of at least 80% in the infrared light wavelength range of 760-1120 nm. This transmission is determined on an injection-molded plaque with a thickness of 2 mm, prepared by injection molding the composition at a maximum temperature of 320° C. and a residence time of 10 minutes. Additionally, the composition is designed to have a transmission of at most 10% in the visible light wavelength range of 380-740 nm.

Career Highlights

Sijun Li is associated with Sabic Global Technologies B.V., where he applies his knowledge and skills in developing advanced materials. His work has positioned him as a key player in the innovation of polycarbonate materials, contributing to various applications in different industries.

Collaborations

Sijun Li collaborates with talented professionals in his field, including Tamara Marijke Eggenhuisen and Shigeru Haba. These collaborations enhance the research and development efforts within his company, fostering an environment of innovation and creativity.

Conclusion

Sijun Li's contributions to the field of materials science, particularly through his patent on infrared transparent polycarbonate composition, highlight his role as an influential inventor. His work continues to impact various industries, showcasing the importance of innovation in material development.

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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