mechanisms for medium inventions, and patent their most important innovations. This result reestablishes the traditional view …

- Handelsgesetzbuch (HGB)) and international (IAS and US-GAAP) accounting information, as well as European patent data to explain the …

Post-grant validity challenges at patent offices rely on the private initiative of third parties to correct mistakes … made by patent offices. We hypothesize that incentives to bring post-grant validity challenges are reduced when many firms … benefit from revocation of a patent and when firms are caught up in patent thickets. Using data on opposition against patents …

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 …