Bibliographically coupled patents: Their temporal pattern and combined relevance

Chung-Huei Kuan, Dar-Zen Chen and Mu-Hsuan Huang

Journal of Informetrics, 2019, vol. 13, issue 4

Abstract: Bibliographically coupled patents reveal a temporal pattern associated with their ages (how long ago they have been issued) and spans (their distance in time). The coupling strength of the aged or long-spanned patent pairs may be inherently limited, especially for fields that reveal patent and reference expansions. This study proposes a simple measure, combined relevance (CR), to counter such impact. Unlike traditional measures, CR provides more balanced treatment to short- and long-spanned but favors more aged patents pairs. A fixed CR threshold may be more safely applied with a reduced possibility of erroneously removing patent pairs that are truly related. For observing long-term knowledge dissemination or tracing overall development trajectory, CR may be an alternative.

Keywords: Bibliography coupling; Temporal pattern; Patent expansion; Reference expansion; Combined relevance (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:infome:v:13:y:2019:i:4:s1751157719302561

DOI: 10.1016/j.joi.2019.100978

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