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Truly standard-essential patents? : a semantics-based analysis

Brachtendorf, Lorenz; Gäßler, Fabian; Harhoff, Dietmar - 2020

Standard-essential patents (SEPs) have become a key element of technical coordination in standard-setting organizations. Yet, in many cases, it remains unclear whether a declared SEP is truly standard-essential. To date, there is no automated procedure that allows for a scalable and objective...

Persistent link: https://www.econbiz.de/10012500157

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 patent universe in its technological and economic variety. We introduce a novel instrumental variable for patent invalidation that exploits personnel scarcity in post-grant...

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...

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

The power of individual-level drivers of inventive performance

Zwick, Thomas; Frosch, Katharina; Hoisl, Karin; … - 2015

Based on an established theoretical framework of the drivers of inventive performance, the so-called KSAO (Knowledge, Skills, Abilities, and Other) factors, this paper seeks to explain empirically the performance of inventors throughout their careers. We combine survey information spanning the...

Persistent link: https://www.econbiz.de/10011381965

Lending relationships in Germany : empirical evidence from survey data

Harhoff, Dietmar; Körting, Timm - 1998

Persistent link: https://www.econbiz.de/10000680892

To be financed or not : the role of patents for venture capital financing

Häussler, Carolin (contributor); … - 2009

This paper investigates how patent applications and grants held by new ventures improve their ability to attract venture capital (VC) financing. We argue that investors are faced with considerable uncertainty and therefore rely on patents as signals when trying to assess the prospects of...

Persistent link: https://www.econbiz.de/10003806179

To be financed or not ... : the role of patents for venture capital financing

Häussler, Carolin; Harhoff, Dietmar; Müller, Elisabeth - 2009

Persistent link: https://www.econbiz.de/10003807992

Citation frequency and the value of patented innovation

Harhoff, Dietmar; Narin, Francis; Scherer, Frederic M.; … - 1997

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 …

Persistent link: https://www.econbiz.de/10011417779

Exploring the tail of patented invention value distributions

Harhoff, Dietmar; Scherer, Frederic M.; Vopel, Katrin - 1997

Patent renewal studies reveal a highly rightward-skewed distribution of patent values. Our approach elicits valuations approximating those of the patented invention. This paper focuses on the full-term patents of the application year 1977 held by West German and U.S. residents. The tail of...

Persistent link: https://www.econbiz.de/10011417839

What are the channels for technology sourcing? : panel data evidence from German companies

Harhoff, Dietmar; Müller, Elisabeth; Van Reenen, John - 2013

Persistent link: https://www.econbiz.de/10009745140