SAO Network Analysis of Patents for Technology Trends Identification: A Case Study of Polymer Electrolyte Membrane Technology in Proton Exchange Membrane Fuel Cells
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- Title
- SAO Network Analysis of Patents for Technology Trends Identification: A Case Study of Polymer Electrolyte Membrane Technology in Proton Exchange Membrane Fuel Cells
- Authors
- Choi, S; Yoon, J; Kim, K; Lee, JY; Kim, CH
- Date Issued
- 2011-09
- Publisher
- Springer
- Abstract
- This paper suggests a method for Subject-Action-Object (SAO) network analysis of patents for technology trends identification by using the concept of function. The proposed method solves the shortcoming of the keyword-based approach to identification of technology trends, i.e., that it cannot represent how technologies are used or for what purpose. The concept of function provides information on how a technology is used and how it interacts with other technologies; the keyword-based approach does not provide such information. The proposed method uses an SAO model and represents "key concept'' instead of "key word''. We present a procedure that formulates an SAO network by using SAO models extracted from patent documents, and a method that applies actor network theory to analyze technology implications of the SAO network. To demonstrate the effectiveness of the SAO network this paper presents a case study of patents related to Polymer Electrolyte Membrane technology in Proton Exchange Membrane Fuel Cells.
- Keywords
- Technology Subject-Action-Object (SAO); Function; Patent mining; Patent analysis; Technology trends analysis; Co-word analysis; Actor network theory; CO-WORD ANALYSIS; RESEARCH-AND-DEVELOPMENT; SCIENTOMETRICS; INFORMATION; PRODUCT; FIELDS; LEVEL; TOOL
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/16794
- DOI
- 10.1007/S11192-011-0420-Z
- ISSN
- 0138-9130
- Article Type
- Article
- Citation
- SCIENTOMETRICS, vol. 88, no. 3, page. 863 - 883, 2011-09
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