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Patent analysis of genetic engineering research in Japan, Korea and Taiwan

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  • Szu-chia Lo

    (National Cheng-Kung University)

Abstract

The aim of this study is to reveal the research growth, the distribution of research productivity and impact of genetic engineering research in Japan, Korea and Taiwan by taking patent bibliometrics approach. This study uses quantitative methods adopt from bibliometrics to analyze the patents granted to Japan, Korea and Taiwan by United States Patent and Trademark Office (USPTO) from 1991 to 2002. In addition to patent and citation count, Bradford’s Law is applied to identify core assignees in genetic engineering. Patent coupling approach is taken to further analyze the patents granted to the core assignees to enclose the correlations among the core assignees. 13,055 genetic engineering patents were granted during the period of 1991 to 2002. Japan, Korea and Taiwan own 841 patents and Japan owns most of them. 270 assignees shared 841 patents and 16 core assignees are identified by the Bradford’s Law. 18,490 patents were cited by the 13,055 patents and 1,146 out of the 18,490 cited patents were granted to Japan, Korea and Taiwan. The results show Japan performs best in productivity and research impact among three countries. The core assignees are also Japan based institutions and four technical clusters are identified by patent coupling.

Suggested Citation

  • Szu-chia Lo, 2007. "Patent analysis of genetic engineering research in Japan, Korea and Taiwan," Scientometrics, Springer;Akadémiai Kiadó, vol. 70(1), pages 183-200, January.
    • Handle: RePEc:spr:scient:v:70:y:2007:i:1:d:10.1007_s11192-007-0111-y
    DOI: 10.1007/s11192-007-0111-y
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    References listed on IDEAS

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    Cited by:

    1. Xianwen Wang & Xi Zhang & Shenmeng Xu, 2011. "Patent co-citation networks of Fortune 500 companies," Scientometrics, Springer;Akadémiai Kiadó, vol. 88(3), pages 761-770, September.
    2. Ming-Chao Huang & Shih-Chieh Fang & Shao-Chi Chang, 2011. "Tracking R&D behavior: bibliometric analysis of drug patents in the Orange Book," Scientometrics, Springer;Akadémiai Kiadó, vol. 88(3), pages 805-818, September.
    3. Jane G. Payumo & Taurean C. Sutton, 2015. "A bibliometric assessment of ASEAN collaboration in plant biotechnology," Scientometrics, Springer;Akadémiai Kiadó, vol. 103(3), pages 1043-1059, June.
    4. Jun Peng Yuan & Wei Ping Yue & Cheng Su & Zheng Wu & Zheng Ma & Yun Tao Pan & Nan Ma & Zhi Yu Hu & Fei Shi & Zheng Lu Yu & Yi Shan Wu, 2010. "Patent activity on water pollution and treatment in China—a scientometric perspective," Scientometrics, Springer;Akadémiai Kiadó, vol. 83(3), pages 639-651, June.

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