Technological Portfolios of Leading Global Electric Vehicle Companies : With a Focus on China’s Catch-up

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This research aims to quantitatively analyze technological portfolio characteristics and strategic differences between Chinese and global electric vehicle companies using patent data.
Defined strategic technology groups based on IPC
Analyzed technology concentration using HHI
Evaluated technology diversity with entropy
Compared citation-based technological influence of both company groups
Chinese companies show high concentration in a few strategic technology groups
Chinese firms demonstrate significant technological influence in select areas based on citation share
Global companies maintain a balanced portfolio across diverse technology groups
Some technology areas reveal lower citation influence for global firms compared to Chinese companies

Analyzes technological strategies of electric vehicle companies, highlighting differences between Chinese and global firms in a growing market.

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Jeong et al. (2026) studied this question.

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