The analysis of patent and citation data has become a popular source of evidence on localized knowledge spillovers and … innovation. Nevertheless, one aspect has been overlooked: the patent distribution across inventors is extremely skewed, as many …

We study how fragmentation of patent rights ('patent thickets') and the formation of the Court of Appeal for the … Federal Circuit (CAFC) affected the duration of patent disputes, and thus the speed of technology diffusion through licensing …. We develop a model of patent litigation which predicts faster settlement agreements when patent rights are fragmented and …

-in-differences estimates using 4226 China–U.S. patent dyads and comparable U.S. patents support our hypotheses …

diffusion, we rely on forward patent citations methodology. Results show that there is a strong likelihood that the citing … patent will be eventually linked to environmental technologies if the original oil and gas invention has already … the opposite quality level of the cited patent. Our results support the idea that more sector-specific environmental …

tests show that the localization of knowledge spillovers, as measured via patent citations, is strongest at small spatial … specification of patent technological categories, the method of citation matching, and alternate cluster definitions …

technological influence and impact. For example, spanning knowledge boundaries has a positive effect on the spanning patent …

analysis to decompose patent data in different digital technologies for various countries into global and country …

project. Using PATSTAT data on forty years of patent data from across the globae, the KIO table provides information on the … number of patent applications across ten major patenting countries and the rest of the world and across 131 technology … classifications. It further provides a network of patent citations, thus indicating how patents build from existing knowledge and …

inverse U-shaped relationship between patent strength and growth: moderate levels of patent protection can stimulate growth …