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http://dx.doi.org/10.14400/JDC.2022.20.3.283

A study of factors affecting citation of patents: Focusing on US automotive patents  

Ryu, Wonrim (Graduate School of Management of Technology, Korea University)
Kim, Youngjun (Graduate School of Management of Technology, Korea University)
Publication Information
Journal of Digital Convergence / v.20, no.3, 2022 , pp. 283-295 More about this Journal
Abstract
The number of citations in a patent is one of the indicators of the qualitative value of a patent. In this study, negative binomial regression model analysis was performed focusing on 47,354 US patents of 14 global top automotive makers in order to examine the major factors affecting the number of patent citations. As a result of the review, it was found that, elapsed years since filing, the number of patent claims, the number of claim letters, the number of inventors, the number of patent family countries, and the number of patent families, as well as IPC diversity, had a positive and significant effect on the number of citations. The results of this study are expected to provide a basic basis for considering the IPC diversity index together in analyzing and evaluating future patents and establishing strategies for creating excellent patents.
Keywords
Patent quality; Patent citation; Patent Index; Patent Family; Automotive; IPC diversity;
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Times Cited By KSCI : 2  (Citation Analysis)
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