Online searching in the U.S. Patent and trademark office

J. Howard Bryant and John F. Terapane

World Patent Information, 1985, vol. 7, issue 1-2, 133-138

Abstract: The paper describes the use of Online Search Systems in the U.S. Patent and Trademark Office by presenting the level of use of specific data bases and the experience of very active searchers. Also presented are the results of two studies using LEXPAT, the full text data base of recent U.S. patents. The first study focuses on what segment of the patent text is needed for high levels of recall and precision in text searching. The second reports the impact of a combined classification and text search strategy on recall and precision.

Date: 1985
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