Modelling the duration of patent examination at the European Patent Office
AbstractWe analyze the duration of patent examination at the European Patent Office (EPO). Our data contain variables that are correlates of the applicants’ and examiners’ assessments of a patent’s economic and technical relevance as well as ex post-application citation measures which indicate the impact of the patent application on the state of the art. We present descriptive statistics for 30 major technology fields. In our multivariate analysis we estimate competing risk specifications in order to characterize differences in the processes leading to either a withdrawal of the application by the applicant, a refusal of the patent grant or an actual patent grant by the European Patent Office. Measuring a patent’s importance relying on the number of citations by subsequent patents we find that more important patents are approved faster by the EPO than less important patents but that applicants are more hesitant to withdraw these potentially valuable applications.
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Bibliographic InfoPaper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 5283.
Date of creation: Oct 2005
Date of revision:
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Other versions of this item:
- Harhoff, Dietmar & Wagner, Stefan, 2006. "Modeling the Duration of Patent Examination at the European Patent Office," Discussion Papers in Business Administration 1256, University of Munich, Munich School of Management.
- Harhoff, Dietmar & Wagner, Stefan, 2006. "Modeling the Duration of Patent Examination at the European Patent Office," Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems 170, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich.
- C15 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Statistical Simulation Methods: General
- C41 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods: Special Topics - - - Duration Analysis; Optimal Timing Strategies
- D73 - Microeconomics - - Analysis of Collective Decision-Making - - - Bureaucracy; Administrative Processes in Public Organizations; Corruption
- O34 - Economic Development, Technological Change, and Growth - - Technological Change; Research and Development; Intellectual Property Rights - - - Intellectual Property and Intellectual Capital
This paper has been announced in the following NEP Reports:
- NEP-ALL-2005-12-09 (All new papers)
- NEP-EEC-2005-12-09 (European Economics)
- NEP-INO-2005-12-09 (Innovation)
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- David Popp & Ted Juhl & Daniel K.N. Johnson, 2003. "Time in Purgatory: Determinants of the Grant Lag for U.S. Patent Applications," NBER Working Papers 9518, National Bureau of Economic Research, Inc.
- Manuel Trajtenberg & Rebecca Henderson & Adam Jaffe, 1997. "University Versus Corporate Patents: A Window On The Basicness Of Invention," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 5(1), pages 19-50.
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