Considering China's policy-driven patent expansion, we validate domestic citations in comparison to foreign ones, which …

stronger patent records, highlighting a synergy between basic research and applied technologies. Mechanism tests indicate that …

This study investigates whether standard patent measures for the importance and basicness of patents are able to …

Without the confidence that patent rights can be enforced quickly and efficiently, when needed, the patent system will … poured significant resources into gathering and analyzing statistics on patent enforcement over the last two decades. This …

Without the confidence that patent rights can be enforced quickly and efficiently, when needed, the patent system will … poured significant resources into gathering and analyzing statistics on patent enforcement over the last two decades. This …

This paper analyses whether strategic motives for patenting influence the characteristics of companies' patent … survey and patent data from German companies. We find clear evidence that the companies' patenting strategies explain the … characteristics of their patent portfolios. First, companies using patents to protect their technological knowledge base receive a …

Many studies rely on patent citations to measure intellectual heritage and impact. In this article, we show that the … nature of patent citations has changed dramatically in recent years. Today, a small minority of patent applications are … generating a large majority of patent citations, and the mean technological similarity between citing and cited patents has …

Analysis of patent citations is a core methodology in the study of knowledge diffusion, and forward citations are used … as a measure of impact of innovations. 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 …

The use of patent citation networks as research tools is becoming increasingly commonplace in the field of innovation … that is accessible through patent data. Taking a conservative approach that links citation network layers through triadic … patent families, we first observe that these layers contain complementary, rather than redundant, information about …

which German patent renewal fees were paid to full-term expiration in 1995. A search of subsequent U.S. and German patents … allowed to expire before their full term. The higher an invention's economic value estimate was, the more the relevant patent …