Measuring patent quality: A claim and search report approach

Thompson, Mark

doi:10.1016/j.wpi.2016.03.003

Cited by 8 publications

(2 citation statements)

References 7 publications

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“…The articles' themes can roughly be divided into two groups: research on the value of patent stock, and miscellaneous other subjects. The former group of themes includes the valuation of patents (Park and Park, 2006;Schankerman and Pakes, 1986;Thompson, 2016) and productivity (Balasubramanian and Sivadasan, 2011;Blind and Jungmittag, 2008;Bottasso et al, 2013;Chen and Yang, 2005;Czarnitzki and Kraft, 2010;Lach, 1995;Madsen, 2008;Mahlich, 2010;Mukherji and Silberman, 2011). This classification is based on the following three approaches to patent valuation: a quality approach, a market value approach, and a hybrid approach (Wang and Hsieh, 2015).…”

Section: Patent Stockmentioning

confidence: 99%

Shadow price of patent stock as knowledge stock: Time and country heterogeneity

Yagi

Managi

2018

Economic Analysis and Policy

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This study compares the shadow price (marginal cost) and shadow value (total cost) of patent stock (as knowledge stock) in each of 92 countries between 1992 and 2010. Two specifications are considered in the data envelopment analysis approach. One specification considers population, capital, patent stock, energy use (four inputs), greenhouse gas (undesirable output), and gross domestic product (desirable output). The other uses human capital and natural capital instead of population and energy use. Under these two specifications, respectively, the shadow price of the patent stock (on weighted average) for the whole period is −0.106 and −0.054 million US dollars per patent in the entire sample.Similarly, the shadow value of the patent stock (by the ratio of gross domestic product) in the entire sample is −5.8% and −2.9%, respectively. As the standing position of patent stock, the patent stock is less valuable than human capital and (produced) capital but more valuable than population, energy use, and natural capital. The patent stock also is likely to be valuable in developing countries. In addition, the shadow value of the patent stock is relatively high in certain large countries and nearly flat in most of the countries.

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Section: Patent Stockmentioning

confidence: 99%

Shadow price of patent stock as knowledge stock: Time and country heterogeneity

Yagi

Managi

2018

Economic Analysis and Policy

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“…In contrast, Chinese assignees generally filed patents only in their home country, which explains the similarity between the number of patents and patent families. Table 1 also presents the average number of citations of each assignee's patents; this number can be used to assess the quality of a patent [31,32]. A weak relationship was found to exist between the average number of citations and the total number of patents/patent families.…”

Section: Analysis By Top Ten Patent Assigneesmentioning

confidence: 99%

Insight into Bulk Metallic Glass Technology Development Trajectory: Mapping from Patent Information Analysis

Chen¹

2018

Solid State Physics [Working Title]

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Bulk metallic glasses (BMGs) having a completely amorphous structure possess many attractive properties, and several groups from academia and industry have conducted research to expand their application in the market. Although many efforts have focused on investigating scientific issues related to the mechanical and chemical properties of these amorphous alloys, very few studies have assessed the development trends of these amorphous materials, especially from the viewpoint of market application and R&D directions. Therefore, in this chapter, the development trajectory of BMG materials is summarized based on data extracted from patent bibliometric information. These data were used because the information on patent documents obtained from a commercial patent database, World Intellectual Property Service (WIPS 2.0), can provide the most comprehensive information on valuable R&D activities and market issues. The results summarize advances in technology based on various alloy categories and processing routes. Furthermore, the research interests are also analyzed according to different countries, companies, and research institutions. The patent information provided in this chapter can provide a clear direction to assist metallurgist/metallurgy engineers in further technology development forecasting and R&D plan management.

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