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Conflict Resolution, Public Goods and Patent Thickets

Harhoff, Dietmar; von Graevenitz, Georg; Wagner, Stefan - C.E.P.R. Discussion Papers - 2013

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...

Persistent link: https://www.econbiz.de/10011083866

The Economic Value of Patent Portfolios

Gambardella, Alfonso; Harhoff, Dietmar; Verspagen, Bart - C.E.P.R. Discussion Papers - 2013

Patent holders may choose to protect innovations with single patents or to develop portfolios of multiple, related inventions. We propose a simple decision-making model in which patent-holders may allocate resources to either expanding the number of related patents or investing in higher value...

Persistent link: https://www.econbiz.de/10011083853

The Value of European Patents

Gambardella, Alfonso; Harhoff, Dietmar; Verspagen, Bart - C.E.P.R. Discussion Papers - 2008

This paper employs data from an extensive European survey to produce one of the first systematic assessments of the private economic value of patents. The estimated mean of our patent value distribution is higher than 3 million Euros, the median is about one-tenth, and the mode is around a few...

Persistent link: https://www.econbiz.de/10005792528

Patent Thickets, Judicial Enforcement and the Market for Innovation: Theory and Evidence from Patent Litigation

Galasso, Alberto; Schankerman, Mark - C.E.P.R. Discussion Papers - 2008

We study how fragmentation of patent rights ('patent thickets') and the formation of the Court of Appeal for the Federal Circuit (CAFC) affected the duration of patent disputes, and thus the speed of technology diffusion through licensing. We develop a model of patent litigation which predicts...

Persistent link: https://www.econbiz.de/10005656440

Patent Suits: Do They Distort Research Incentives?

Lanjouw, Jenny; Schankerman, Mark - C.E.P.R. Discussion Papers - 1998

This paper shows that the process of enforcing patent rights both dilutes and distorts Research and Development (R&D) incentives. We examine the characteristics of litigated patents by combining, for the first time, information about patent case filings from the US district courts with detailed...

Persistent link: https://www.econbiz.de/10005124091

Spreading the Word: Geography, Policy and University Knowledge Diffusion

Belenzon, Sharon; Schankerman, Mark - C.E.P.R. Discussion Papers - 2010

Using new data on citations to university patents and scientific publications, and measures of distance based on Google maps, we study how geography affects university knowledge diffusion. We show that knowledge flows from patents are localized in two respects: they decline sharply with distance...

Persistent link: https://www.econbiz.de/10008642874

Trade Secret Laws, Labour Mobility and Innovations

Motta, Massimo; Rønde, Thomas - C.E.P.R. Discussion Papers - 2002

We show that when the researcher’s (observable but not contractible) contribution to innovation is crucial, a covenant …

Persistent link: https://www.econbiz.de/10005504700

Innovation Beyond Patents: Technological Complexity as a Protection against Imitation

Henry, Emeric; Ruiz-Aliseda, Francisco - C.E.P.R. Discussion Papers - 2012

A large portion of innovators do not patent their inventions. This is a relative puzzle since innovators are often perceived to be at the mercy of imitators in the absence of legal protection. In practice, innovators however invest actively in making their products technologically hard to...

Persistent link: https://www.econbiz.de/10011084053

Perfectly Competitive Innovation

Boldrin, Michele; Levine, David - C.E.P.R. Discussion Papers - 2002

We construct a competitive model of innovation and growth under constant returns to scale. Previous models of growth … under constant returns cannot model technological innovation. Current models of endogenous innovation rely on the interplay … innovation and sees the non-rivalrous nature of ideas as a natural conduit to increasing returns. The results here challenge the …

Persistent link: https://www.econbiz.de/10005661529

Are More Important Patents Approved More Slowly and Should They Be?

Régibeau, Pierre; Rockett, Katharine - C.E.P.R. Discussion Papers - 2007

quickly. Also, the approval delay is likely to decrease as an industry moves from the early stages of an innovation cycle to …

Persistent link: https://www.econbiz.de/10005661945