Identifying Technical Opportunities by Semantic Analysis of Expired Patents and Multi-Dimensional Tech-Innovation Map
Wang Jinfeng1,2,Wu Xuan1(),Zhang Dingtang3,Feng Lijie1,4,Zhang Ke5
1School of Management, Zhengzhou University, Zhengzhou 450001, China 2China Institute of FTZ Supply Chain, Shanghai Maritime University, Shanghai 201306, China 3Complete Equipment Research Institute, Zhengzhou Coal Mining Machinery Group Co., Ltd., Zhengzhou 450016, China 4School of Logistics Engineering, Shanghai Maritime University, Shanghai 201306, China 5School of Information Management, Zhengzhou University, Zhengzhou 450001, China
[Objective] This paper aims to identify technical opportunities from expired patents.[Methods] First, we used SAO semantic analysis to determine problems to be solved in technology fields. Then, we constructed a SAO knowledge base with the core expired patents. Finally, we identified technology opportunities based on a multi-dimensional tech-innovation map. [Results] We examined the proposed model with patents for coal mine dust removal. The three technology opportunities identified by our method could provide decision-making support for enterprises. [Limitations] More research is needed to study patents from other fields and compare our model’s performance with the existing ones. [Conclusions] The proposed model could improve the accuracy and application of technology identification from patents.
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