. Using a binary size measure, we find strong support for the traditional view that firms patent their most important … framework. -- filing fees ; imitation ; innovation ; probabilistic patent rights ; R&D ; simultaneous innovation ; trade secrets …

mechanisms for medium inventions, and patent their most important innovations. This result reestablishes the traditional view …. -- heterogeneous inventions ; innovation size ; intellectual property rights ; patents ; patent filing fees ; patentability standards …

between the propensity to jointly own a patent and proximity in the product market; b) joint patents are associated with less …

This paper assesses the impact of adopting a post-grant review institution in the US patent system by comparing the … 'opposition careers' of European Patent Office (EPO) equivalents of litigated US patents to those of a control group of EPO … employing these different methods in our data analysis. We find that EPO equivalents of US litigated patent applications are …

strategic patenting over time and across industries. With received citations as a measure of patent social value, we use data … strategy reveals there was an almost universal drop in patent social value in the second half of the 1990s, signaling a shift … companies increasing their focus on patent value relative to companies from other industries. On average, aerospace and software …

. Domestic innovation is measured as citation-weighted domestic patents filed at the European Patent Office (EPO): to account for … to patent at the EPO. Results show that, in the short-run, IPR stimulate innovation. The effect for developing countries …

We analyze the effect of patent thickets on entry into technology areas by firms in the UK. We present a model that … the potential for hold‐up in patent thickets. We show empirically that our measure of patent thickets is associated with a … evidence indicates that patent thickets raise entry costs, which leads to less entry into technologies regardless of a firm …

rates and reduce output as compared to non-integration. Horizontal integration of IP holders (or a patent pool) solves the …

are developed on the basis of DNA. Only in this way, patent law can gain general acceptance in civil and academic society …