Patent collaborations: From segregation to globalization
Journal of Informetrics(2022)
摘要
•The number of patents required to reach percolation decreases over time.•Geographical interplay of the two major groups of applicants increases over time.•Non-European applicants’ participation increases over time.•Japan contributes significantly to the network’s coherence.•The critical patents are typically introduced by large-sized applicants.
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关键词
EPO Patents network,Giant component,Percolation,Network evolution,Globalization
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