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| Patent Co-classification Based on Key Technology Identification and Research on Technology Development Mode |
| Li Ruixi, Chen Xiangdong |
| School of Economics and Management, Beihang University, Beijing 100191 |
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Abstract On the basis of the co-classification data of invention patents in 35 technical fields granted in mainland China, an asymmetric technology knowledge flow network was constructed according to the main and supplementary international patent classifications. With the methods of centrality, structural hole, and intermediary analysis, the technology association structure, core technology, intermediary technology, and emerging technology in the technology-related network were identified. The results found that technical areas are frequently linked, creating a more mature network of core technology that stimulates other emerging technology areas. The entire technology field network consists of three types of intermediary roles—representative, consultant, and liaison—which is characterized by basic communication processes (BCP), mechanical elements (MEE), and digital communication (DIG). Through the important intermediarity and integration of chemical, mechanical engineering, and electrical engineering areas, the five major technical areas can achieve coordinated development.
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Received: 05 December 2017
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