Xi'an, China

Chang Liu

This inventor holds 1 USPTO granted patent and 1 published patent application. Top assignee: Longi Green Energy Technology Co., Ltd.. Active years: 2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chang Liu. Retrieved from https://idiyas.com/inventor/chang-liu-ieac8wv3

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 

Average Co-Inventor Count = 1.0

ph-index = 1


Company Filing History:


Years Active: 2026

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1 patent (USPTO):Explore Patents

Title: Chang Liu and Back-Contact Solar Cell Innovation.

Introduction

Chang Liu is an inventor based in Xi’an, China, associated with Longi Green Energy Technology Co., Ltd. His listed patent concerns back-contact solar-cell design and photovoltaic modules. The provided information attributes 1 patent to him.

Latest Patents

Liu’s listed patent is titled “Back Contact Solar Cell and Method for Manufacturing Same and Photovoltaic Module.” It describes a solar cell built on a semiconductor substrate with first and second doped semiconductor layers. The layers have opposite doping types and occupy designated regions of the substrate. In one region, they overlap through the substrate’s thickness to form a stacked structure, with a dielectric layer positioned at least partly between them. The disclosed design also includes a leakage path in the dielectric layer.

Career Highlights

The available information connects Liu’s work to Longi Green Energy Technology Co., Ltd., a company focused on solar energy technology. His listed invention addresses the structure and manufacture of back-contact solar cells and their use in photovoltaic modules.

Collaborations

The provided data identifies Hongbo Tong and Yupeng Jin as Liu’s coworkers. No further details about their roles or contributions to the listed patent were provided.

Conclusion

Chang Liu’s listed patent documents a back-contact solar-cell design involving overlapping doped layers and a dielectric layer, reflecting his association with solar technology innovation at Longi Green Energy Technology Co., Ltd.

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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