منابع مشابه
The dynamics of patent citations
The use of patent citations as a measure of patent "quality" increased dramatically in recent years. I estimate the hazard of patent citation, and find evidence of unobserved heterogeneity. Hazard estimation provides a means to separate patent quality from citation "inflation." JEL: C1, O3.
متن کاملThe Market Value of Blocking Patent Citations
There is a growing literature that aims at assessing the private value of knowledge assets and patents. It has been shown that patents and their quality as measured by citations received by future patents contribute significantly to the market value of firms beyond their R&D stocks. This paper goes one step further and distinguishes between different types of forward citations patents can recei...
متن کاملMarket Value and Patent Citations
The goal of this paper is to explore the usefulness of patent citations as a means to tackle the huge heterogeneity of patented innovations in determining the stock market value of firms, and to further validate the informational content of patent citations in terms of economic impact. This project was made possible by the creation of a comprehensive data file on patents and citations for 1963-...
متن کاملPatent Citations as a Measure of Knowledge Flows: the Influence of Examiner Citations
Analysis of patent citations is a core methodology in the study of knowledge diffusion. However, citations made by patent examiners have not been separately reported, adding unknown noise to the data. We leverage a recent change in the reporting of patent data showing citations added by examiners. The magnitude is high: two-thirds of citations on the average patent are inserted by examiners. Fu...
متن کاملThe missing ingredient in medicine patent pools.
www.thelancet.com Vol 374 October 17, 2009 1329 and women, ”reducing the incidence of genital warts, cervical intraepithelial neoplasia, and cervical cancer by 97%, 91%, and 91%, respectively”. Although the initial expense will be higher, additionally accounting for the prevention of HPV-linked cancers in men (eg, anal, penile, and oropharyngeal cancers) will make this approach cost eff ective....
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ژورنال
عنوان ژورنال: SSRN Electronic Journal
سال: 2020
ISSN: 1556-5068
DOI: 10.2139/ssrn.3754772