Patent searching using classifications and using keywords

T.S. Eisenschitz and J.A. Crane

World Patent Information, 1986, vol. 8, issue 1, 38-40

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.

Date: 1986
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