Modeling the Duration of Patent Examination at the European Patent Office
AbstractWe analyze the duration of the patent examination process at the European Patent Office (EPO). Our data contain information related to the patentâ€™s economic and technical relevance, EPO capacity and workload as well as novel citation measures which are derived from the EPOâ€™s search reports. In our multivariate analysis we estimate competing risk specifications in order to characterize differences in the processes leading to a withdrawal of the application by the applicant, a refusal of the patent grant by the examiner or an actual patent grant. Highly cited applications are approved faster by the EPO than less important ones, but they are also withdrawn less quickly by the applicant. The process duration increases for all outcomes with the applicationâ€™s complexity, originality, number of references (backward citations) in the search report and with the EPOâ€™s workload at the filing date. Endogenous applicant behavior becomes apparent in other results: more controversial claims lead to slower grants, but faster withdrawals, while relatively well-documented applications (identified by a high share of applicant references appearing in the search report) are approved faster and take longer to be withdrawn.
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Bibliographic InfoPaper provided by Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich in its series Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems with number 170.
Date of creation: Oct 2006
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patents; patent examination; survival analysis; patent citations; European Patent Office;
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, 2005. "Modelling the duration of patent examination at the European Patent Office," CEPR Discussion Papers 5283, C.E.P.R. Discussion Papers.
- 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 Rights
This paper has been announced in the following NEP Reports:
- NEP-ALL-2006-11-04 (All new papers)
- NEP-EEC-2006-11-04 (European Economics)
- NEP-INO-2006-11-04 (Innovation)
- NEP-IPR-2006-11-04 (Intellectual Property Rights)
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.:
- 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.
- 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.
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