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- W2202247688 abstract "We develop an index that compares the quality of Patent CooperationTreaty (PCT) applications by considering citations generated by International SearchReports (ISRs). In its most restrictive variation, i.e. excluding citations from the homecountry and self-citations, the ISR index is not biased by selectivity in filing strategies,differences in citations due to varying national examination procedures, or domesticeconomic policies. Against the background of strong increases in Chinese patentingbetween 2001 and 2009, we compare the quality of Chinese PCT applications withthose from high-income countries. Chinese PCT applications achieve only 34% of thequality level of international PCT applications. In addition, their quality is decreasingover time. We find that the patent quality of firms increases in R&D stocks butdecreases with the introduction of PCT subsidies. Our results confirm that China’sexpansion of international filings was achieved to the detriment of quality." @default.
- W2202247688 created "2016-06-24" @default.
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- W2202247688 date "2015-01-01" @default.
- W2202247688 modified "2023-09-25" @default.
- W2202247688 title "Measuring Patent Quality in International Comparison Index Development and Application to China" @default.
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- W2202247688 doi "https://doi.org/10.2139/ssrn.2641075" @default.
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