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Patent equivalents: Problems of retrieval and patent family tracing in databases

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  • Sipapin, Yu. V.
  • Kolesnikov, A. P.

Abstract

The article describes an experiment to determine the recall and precision characteristics of detected patent equivalents and to compare tje results obtained from the Derwent, INPADOC, INPI, and VNIIPI CSPI-2 and 'TEMP' databases. Three basic patent families are used as the bases of the experiment and the results of the retrieval requests in all the above databases are discussed in detail.

Suggested Citation

  • Sipapin, Yu. V. & Kolesnikov, A. P., 1989. "Patent equivalents: Problems of retrieval and patent family tracing in databases," World Patent Information, Elsevier, vol. 11(3), pages 139-146.
    • Handle: RePEc:eee:worpat:v:11:y:1989:i:3:p:139-146
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    Cited by:

    1. Bekkers, Rudi & Martinelli, Arianna & Tamagni, Federico, 2020. "The impact of including standards-related documentation in patent prior art: Evidence from an EPO policy change," Research Policy, Elsevier, vol. 49(7).
    2. Rudi Bekkers & Arianna Martinelli, 2010. "The interplay between standardization and technological change: A study on wireless technologies, technological trajectories, and essential patent claims," Working Papers 10-08, Eindhoven Center for Innovation Studies, revised Sep 2010.

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