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The disciplinary effect of post-grant review : causal evidence from European patent opposition

Nagler, Markus; Sorg, Stefan - 2019

We study the causal impact of invalidating marginally valid patents during post-grant opposition at the European Patent Office on affected inventors' subsequent patenting. We exploit exogenous variation in invalidation by leveraging the participation of a patent's original examiner in the...

Persistent link: https://www.econbiz.de/10011996418

The disciplinary effect of post-grant review : causal evidence from European patent opposition

Nagler, Markus; Sorg, Stefan - 2019

Persistent link: https://www.econbiz.de/10012033571

Bargaining failure and freedom to operate : re-evaluating the effect of patents on cumulative innovation

Gaessler, Fabian; Harhoff, Dietmar; Sorg, Stefan - 2019

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

Persistent link: https://www.econbiz.de/10012139072

Bargaining Failure and Freedom to Operate : Re-Evaluating the Effect of Patents on Cumulative Innovation

Gaessler, Fabian - 2019

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

Persistent link: https://www.econbiz.de/10012863982

Patents, freedom to operate, and follow-on innovation : evidence from post-grant opposition

Gäßler, Fabian; Harhoff, Dietmar; Sorg, Stefan; … - 2024

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 …

Persistent link: https://www.econbiz.de/10014503038