Abstract
Citations from patents to scientific publications provide useful evidence about the commercial impact of academic research, but automatically searchable databases are needed to exploit this connection for large-scale patent citation evaluations. Google covers multiple different international patent office databases but does not index patent citations or allow automatic searches. In response, this article introduces a semiautomatic indirect method via Bing to extract and filter patent citations from Google to academic papers with an overall precision of 98%. The method was evaluated with 322,192 science and engineering Scopus articles from every second year for the period 1996–2012. Although manual Google Patent searches give more results, especially for articles with many patent citations, the difference is not large enough to be a major problem. Within Biomedical Engineering, Biotechnology, and Pharmacology & Pharmaceutics, 7% to 10% of Scopus articles had at least one patent citation but other fields had far fewer, so patent citation analysis is only relevant for a minority of publications. Low but positive correlations between Google Patent citations and Scopus citations across all fields suggest that traditional citation counts cannot substitute for patent citations when evaluating research.Citation
Kousha, K., Thelwall, M. (2017) 'Patent citation analysis with Google' Journal of the Association for Information Science and Technology, 68 (1) p.48-61Publisher
Wiley-BlackwellJournal
Journal of the Association for Information Science and TechnologyAdditional Links
http://doi.wiley.com/10.1002/asi.23608Type
Journal articleLanguage
enDescription
This is an accepted manuscript of an article published by Wiley-Blackwell in Journal of the Association for Information Science and Technology on 23/09/2015, available online: https://doi.org/10.1002/asi.23608 The accepted version of the publication may differ from the final published version.ISSN
2330-1635ae974a485f413a2113503eed53cd6c53
10.1002/asi.23608
Scopus Count
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