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Precocious inventors : early patenting success and lifetime inventive performance

Michlbauer, Theresa; Zwick, Thomas - 2021

This paper shows that inventors with an early patenting success have a higher inventive productivity during their remaining career. We use European patent data for a period of 32 years for 1240 German inventors. The patent data are linked with survey data that provide information on an extensive...

Persistent link: https://www.econbiz.de/10012510353

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

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

The rise of process claims : evidence from a century of U.S. patents

Ganglmair, Bernhard; Robinson, W. Keith; Seeligson, Michael - 2022 - This version: April 2, 2022

We document the occurrence of process claims in granted U.S. patents over the last century. Using novel data on the 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...

Persistent link: https://www.econbiz.de/10013175193

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/10012033571

The anatomy of Chinese innovation : insights on patent quality and ownership

Boeing, Philipp; Brandt, Loren; Dai, Ruochen; Lim, Kevin; … - 2024

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. First, average patent importance declined from...

Persistent link: https://www.econbiz.de/10014504832

Patents that match your standards : firm-level evidence on competition and innovation

Bergeaud, Antonin; Schmidt, Julia; Zago, Riccardo - 2022

Persistent link: https://www.econbiz.de/10013454076

Antitrust and (foreign) innovation : evidence from the Xerox case

Mamrak, Robin - 2023

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 …

Persistent link: https://www.econbiz.de/10014479185

Trade, innovation and optimal patent protection

Hémous, David; Lepot, Simon; Sampson, Thomas; … - 2023

Persistent link: https://www.econbiz.de/10014436753

Tickets to the global market : first US patent awards and Chinese firm exports

Gong, Kaiji; Li, Yao; Manova, Kalina; Sun, Stephen Teng - 2023

Persistent link: https://www.econbiz.de/10014436776