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2020 , Vol. 64 >Issue 6: 59 - 68

DOI: https://doi.org/10.13266/j.issn.0252-3116.2020.06.008

Research on Selection and Identification of Technical Elements for Patent Technological Evolution Analysis: A Case Study on Nano Fertilizer

  • Li Xiaoman ,
  • Zhang Xuefu ,
  • Song Hongyan ,
  • Sun Wei
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  • Agricultural Information Institute of Chinese Academy of Agricultural Sciences, Beijing 100081

Received date: 2019-05-23

  Revised date: 2019-09-22

  Online published: 2020-03-20

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Abstract

[Purpose/significance] Patent is one of the most reliable sources of technical intelligence. By patent analysis, one can realize the mining and the utilization of patent information, and the technology innovation. Technological evolution analysis refers to the process of emergence, development, transfer, change and even annihilation of technology themes. The focus of the current research is to deeply reveal the patent technology information, technical elements are the key to deeply reveal patent technology information.[Method/process] Proposing a method for identifying technical elements based on patent documents for specific fields by analyzing typical patents and feature recognition.[Result/conclusion] Applying our methods to the nano fertilizer field, through the analysis of typical patents, five technical elements are identified:materials, products, methods, functions and usage, and the identification of technical elements is completed based on SAO structure and domain vocabulary. Our methods can serve as a foundation for technological evolution analysis, and display field technical information from multiple perspectives.

Key words： technological evolution; technological elements; SAO structure; nano fertilizer; technological network

Cite this article

Li Xiaoman , Zhang Xuefu , Song Hongyan , Sun Wei . Research on Selection and Identification of Technical Elements for Patent Technological Evolution Analysis: A Case Study on Nano Fertilizer[J]. Library and Information Service, 2020 , 64(6) : 59 -68 . DOI: 10.13266/j.issn.0252-3116.2020.06.008

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