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Abstract It is of practical significance to research the crossintegration of technology through the citation between patents, considering the onesidedness of the current technology boundary division and the lack of dynamic analysis of the technology integration process, presents a procedural method to analyze trends of technology fusion.First, the concordance between industry and patent is employed to construct the knowledge flow matrix, and then comprehensive assessment indicators have been established from two dimensions of technology spillover and technology influence, and 4 kinds of different types of technology fusion are depicted; the dynamic process of technology fusion by time series analysis.Finally, it takes the greencar patent data by State Intellectual Property Office, to verify the effectiveness of the procedural method.The result reveal that there is a clear technical proximity in the process of technology fusion;the technology fusion role will change dynamically.
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