[Objective/Significance] From the perspective of patent quality, this study aims to identify the distribution characteristics and technology evolution paths of high-value patents in the eVTOL sector, providing references for industrial innovation and competitive strategy. [Method/Process] Using the PatSnap database as the primary source and integrating databases such as Incopat and Derwent Innovation for cross-validation, an initial search yielded 17829 patents, which were reduced to 8382 valid patents after simple family deduplication. Based on a macro-level landscape analysis of global eVTOL patents covering application trends, spatial distribution, and applicant and technology theme analysis, a three-dimensional identification framework encompassing technology, market, and legal dimensions was constructed. The analytic hierarchy process (AHP) and entropy weight method were then combined to evaluate patent value and delineate the distribution of core technologies. [Results/Conclusions] The patent landscape analysis reveals that the eVTOL sector has surpassed the industrialization tipping point, characterized by explosive growth in patent filings, a multipolar global layout, and a high concentration of competition. The results of high-value patent identification indicate that high-value patents in this field are predominantly concentrated in key technologies such as flight control systems, distributed electric propulsion systems, vertical take-off and landing structural design, and energy management modules. High-value patents account for a relatively low proportion, exhibiting a “spire-type” long-tail distribution and a trend of technology path convergence, with initial signs of technological barriers and lock-in effects emerging.
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Science Focus, 2026, 21(3): 53-66 DOI:10.15978/j.cnki.1673-5668.20260117
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