From a firm’s perspective two competing forces are driving the decision to invest in innovation. On the one hand …, innovative performance is an important driver of profitability and growth. On the other hand, investments in innovation suffer … firms may protect their inventions by means of intellectual property rights, such as patents. By taking out a patent …

PCT patent applications reach only a third of the non-Chinese quality benchmark, the extension towards domestic and self … are to be interpreted as a measure of patent quality. …

Recent innovation literature has documented the benefits of cross-pollination of ideas across a wide set of industries …

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 …

How does antitrust enforcement against patent-based monopolies affect innovation? I address this question by … ordered to license all its copier-technology patents in the US and abroad. I show that this promoted innovation by other firms … available for licensing. This positive effect is driven by increased innovation by Japanese competitors. They started developing …

type of independent patent claims, we show an increase in the annual share of process claims of about 25 percentage points … (from below 10% in 1920). This rise in process intensity is not limited to a few patent classes but can be observed across a … shorter than product claims; but this gap has narrowed since the 1970s. These patterns suggest that the patent breadth and …

. First, average patent importance declined from 2000-2010 but has increased more recently. Second, private Chinese firms …We study the evolution of patenting in China from 1985-2019. We use a Large Language Model to measure patent importance … based on patent abstracts and classify patent ownership using a comprehensive business registry. We highlight four insights …