Standard-essential patents (SEPs) have become a key element of technical coordination in standard-setting organizations … approximating the standard essentiality of patents. We provide details on the procedure that generates the measure of standard …'s usefulness in estimating the share of true SEPs in firm patent portfolios for several mobile telecommunication standards. We find …

We investigate the causal effect of patent rights on cumulative innovation, using large-scale data that approximate the … patent universe in its technological and economic variety. We introduce a novel instrumental variable for patent invalidation … that exploits personnel scarcity in post-grant opposition at the European Patent Office. We find that patent invalidation …

A "patent box" is a term for the application of a lower corporate tax rate to the income derived from the ownership of … patents. This tax subsidy instrument has been introduced in a number of countries since 2000. Using comprehensive data on … patent filings at the European Patent Office, including information on ownership transfers pre- and post-grant, we …