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Patent searching using classifications and using keywords

Author

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  • Eisenschitz, T.S.
  • Crane, J.A.

Abstract

Two quantities are defined to represent the overlap of coverage of concepts by classifications and by keywords in patents. These are applied to small samples of U.K. and U.S. patents concerned with buildings. It was found that both U.K. and U.S. classification codes would perform better than keywords in a search.

Suggested Citation

  • Eisenschitz, T.S. & Crane, J.A., 1986. "Patent searching using classifications and using keywords," World Patent Information, Elsevier, vol. 8(1), pages 38-40.
    • Handle: RePEc:eee:worpat:v:8:y:1986:i:1:p:38-40
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    Cited by:

    1. Martin Kalthaus, 2017. "Identifying technological sub-trajectories in photovoltaic patents," Jena Economics Research Papers 2017-010, Friedrich-Schiller-University Jena.
    2. Bruns, Stephan B. & Kalthaus, Martin, 2020. "Flexibility in the selection of patent counts: Implications for p-hacking and evidence-based policymaking," Research Policy, Elsevier, vol. 49(1).

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