We investigate the causal effect of patent rights on cumulative innovation, using large-scale data that approximate the …

We study the blocking effect of patents on follow-on innovation by others. We posit that follow-on innovation requires … freedom to operate (FTO), which firms typically obtain through a license from the patentee holding the original innovation …. Where licensing fails, follow-on innovation is blocked unless firms gain FTO through patent invalidation. Using large …

Through a survey, economic value estimates were obtained on 962 inventions made in the United States and Germany and on … was subsequently cited. results from two wide-ranging surveys, one in Germany and one in the United States, support … expiration in environments such as Germany with highly progressive annual maintenance fees are more valuable and more highly …

dem Mannheimer Innovationspanel wird in mehrfacher Hinsicht Neuland - zumindest für die Bundesrepublik Deutschland … gleichzeitig die deutsche Teilerhebung der in allen EG-Ländern durchgeführten 'Community Innovation Survey' dar. Der Fragebogen …