We study the causal impact of invalidating marginally valid patents during post-grant opposition at the European Patent … participation of a patent's original examiner in the opposition division as an instrument. We find a disciplinary effect of … invalidation: Affected inventors file 20% fewer patent applications in the decade after the decision. This effect is entirely …

remaining career. We use European patent data for a period of 32 years for 1240 German inventors. The patent data are linked … of inventors applying for the first patent after completing education or being in the highest quartile of citations … received for the first patent. The higher career productivity seems to be a consequence of higher individual ability rather …

Patent renewal studies reveal a highly rightward-skewed distribution of patent values. Our approach elicits valuations … approximating those of the patented invention. This paper focuses on the full-term patents of the application year 1977 held by West … appears to provide the best fit to our patented invention value data. …

We explore the tail of patented invention value distributions by using value estimates obtained directly from patent …-Maddala and log normal distributions, the log normal appears to provide the best fit to our patented invention value data. …

's usefulness in estimating the share of true SEPs in firm patent portfolios for several mobile telecommunication standards. We find …

We analyze the extent to which private defensive litigation insurance deters patent assertion by non …-practicing entities (NPEs). We study the effect that a patent-specific defensive insurance product, offered by a leading litigation … defensive litigation insurance on the behavior of patent enforcers and accused infringers. We show that the availability of …

invention (through patents) and the clinical trials data submitted for market approval (through data exclusivity). Patent … market exclusivity on the likelihood of drug commercialization. The effect is largely driven by patent invalidations early in …