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Développement et impact des stratégies de dépôt de brevets

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  • Nicolas van Zeebroeck

Abstract

Cet article propose une analyse de l’évolution et des déterminants des stratégies de dépôt de brevets et leur impact sur les systèmes de brevets. La motivation de cette recherche réside dans l’évolution des pratiques (rédaction et dépôt des demandes) au cours des 20 dernières années, caractérisée par une forte augmentation du nombre de brevets et de leur taille moyenne. Ces développements pourraient compromettre la capacité du système de brevets à remplir sa mission de stimulant à l’innovation, la croissance du nombre et de la taille des brevets induisant des arriérés importants et des délais d’attente considérables. Au moyen d’une base de données unique et de différents modèles économétriques, ce papier analyse d’abord les facteurs sous-jacents de cette évolution, notamment la diffusion internationale des pratiques, la complexité croissante des inventions, l’émergence de nouveaux secteurs d’activité technologique et industrielle, et la construction de larges portefeuilles de brevets. L’association de ces stratégies de dépôt en développement avec la valeur des brevets est ensuite analysée sur base des indicateurs traditionnels de valeur et d’un nouvel indicateur composite. Enfin, une analyse plus approfondie de la durée de vie des brevets confirme que ces stratégies sont fortement associées à leur valeur, mais révèle surtout que leur effet principal est de rallonger la durée d’examen, engendrant de l’incertitude juridique dans le système de brevets et soulevant un certain nombre d’implications politiques.

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Bibliographic Info

Paper provided by ULB -- Universite Libre de Bruxelles in its series Working Papers CEB with number 08-041.

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Length: 13 p.
Date of creation: 2008
Date of revision:
Publication status: Published by:
Handle: RePEc:sol:wpaper:08-041

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Keywords: Brevets; IPR; Stratégies de protection; Politiques d’innovation;

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References

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  1. Guellec, Dominique & Pottelsberghe de la Potterie, Bruno v., 2000. "Applications, grants and the value of patent," Economics Letters, Elsevier, vol. 69(1), pages 109-114, October.
  2. Bruno Van Pottelsberghe & Eugenio Archontopoulos & Dominique Guellec & Niels Stevnsborg & Nicolas van Zeebroeck, 2006. "When small is beautiful: measuring the evolution and consequences of the voluminosity of patent applications at the EPO," Working Papers CEB 06-019.RS, ULB -- Universite Libre de Bruxelles.
  3. Bruno Van Pottelsberghe & Didier François, 2006. "The cost factor in patent systems," Working Papers CEB 06-002.RS, ULB -- Universite Libre de Bruxelles.
  4. Silverberg,Gerald & Verspagen,Bart, 2004. "The size distribution of innovations revisited: an application of extreme value statistics to citation and value measures of patent significance," Research Memorandum 021, Maastricht University, Maastricht Economic Research Institute on Innovation and Technology (MERIT).
  5. repec:fth:harver:1473 is not listed on IDEAS
  6. Guellec, Dominique & van Pottelsberghe, Bruno & van Zeebroeck, Nicolas, 2006. "Claiming More: The Increased Voluminosity of Patent Applications and its Determinants," CEPR Discussion Papers 5971, C.E.P.R. Discussion Papers.
  7. Bruno Van Pottelsberghe & Dominique Guellec, 2008. "Patents and academic research: a state of the art," ULB Institutional Repository 2013/6187, ULB -- Universite Libre de Bruxelles.
  8. Graham, Stuart J. H. & Hall, Bronwyn H. & Harhoff, Dietmar & Mowery, David C., 2002. "Post-Issue Patent "Quality Control": A Comparative Study of US Patent Re-Examinations and European Patent Oppositions," Department of Economics, Working Paper Series qt2qt097bd, Department of Economics, Institute for Business and Economic Research, UC Berkeley.
  9. Nicolas van Zeebroeck, 2011. "The puzzle of patent value indicators," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 20(1), pages 33-62.
  10. Dominique Guellec & Bruno Van Pottelsberghe & Nicolas van Zeebroeck, 2007. "Patent as a market instrument," ULB Institutional Repository 2013/60728, ULB -- Universite Libre de Bruxelles.
  11. Bruno Van Pottelsberghe & Nicolas van Zeebroeck, 2008. "A brief history of space and time: the scope-year index as a patent value indicator based on families and renewals," ULB Institutional Repository 2013/6383, ULB -- Universite Libre de Bruxelles.
  12. Griliches, Zvi, 1990. "Patent Statistics as Economic Indicators: A Survey," Journal of Economic Literature, American Economic Association, vol. 28(4), pages 1661-1707, December.
  13. Jean O. Lanjouw & Mark Schankerman, 1997. "Stylized Facts of Patent Litigation: Value, Scope and Ownership," NBER Working Papers 6297, National Bureau of Economic Research, Inc.
  14. Harhoff, Dietmar & Scherer, Frederic M. & Vopel, Katrin, 2003. "Citations, family size, opposition and the value of patent rights," Research Policy, Elsevier, vol. 32(8), pages 1343-1363, September.
  15. Ariel Pakes & Mark Schankerman, 1979. "The Rate of Obsolescence Of Knowledge, Research Gestation Lags, and the Private Rate of Return to Research Resources," NBER Working Papers 0346, National Bureau of Economic Research, Inc.
  16. Bruno Van Pottelsberghe & Dominique Guellec, 2007. "The economics of the European patent system: IP policy for innovation and competition," ULB Institutional Repository 2013/6183, ULB -- Universite Libre de Bruxelles.
  17. Dominique Guellec & Bruno Van Pottelsberghe de la Potterie, 2002. "The Value of Patents and Patenting Strategies: Countries and Technology Areas Patterns," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 11(2), pages 133-148.
  18. Scherer, F. M. & Harhoff, Dietmar, 2000. "Technology policy for a world of skew-distributed outcomes," Research Policy, Elsevier, vol. 29(4-5), pages 559-566, April.
  19. Nicolas van Zeebroeck, 2007. "Patents only live twice: a patent survival analysis in Europe," Working Papers CEB 07-028.RS, ULB -- Universite Libre de Bruxelles.
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