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 …

We investigate incidence and evolution of patent thickets. Our empirical analysis is based on a theoretical model of … patenting in complex and discrete technologies. The model captures how competition for patent portfolios and complementarity of … patent thickets is introduced. European patent citations are used to construct measures of fragmentation and technological …

We investigate incidence and evolution of patent thickets. Our empirical analysis is based on a theoretical model of … patenting in complex and discrete technologies. The model captures how competition for patent portfolios and complementarity of … patent thickets is introduced. European patent citations are used to construct measures of fragmentation and technological …

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 …

The number of patent applications filed at the Chinese State Intellectual Property Office SIPO grew tremendously over … the last decades and the SIPO has become the world's third largest patent office by 2009. In this paper, we provide an … overview of the institutional background of patent examination in China. Moreover, we empirically analyze the determinants of …

Most econometric analyses of patent data rely on regression methods using a parametric form of the predictor for … techniques for estimation purposes. Using this methodology we reanalyze the determinants of patent oppositions in Europe for …

. Zudem gehe es bei der Impfstoffdebatte eher um den Weg vom Patent zur Produktion als um die Entstehung neuer Produkte durch … Impfstoffe schneller zur Verfügung stehen, sondern dass die Hersteller von Impfstoffen keinen Anreiz mehr haben, sich an einer …