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Claiming more: the increased voluminosity of patent applications and its determinants

  • Nicolas van Zeebroeck
  • Bruno Van Pottelsberghe
  • Dominique Guellec

The joint increase in the number and size of patents filed around the world puts the patent system under pressure. This paper analyses the sources of this surge in number of claims and pages of patent applications at the EPO. Four hypotheses are scrutinized: the diffusion of national drafting practices, the increasing complexity of inventions, the emergence of new sectors, and new patenting strategies. The results show that the increasing voluminosity is explained by all these hypotheses and suggest that the diffusion of the US model through the PCT is one of the major factors driving the size of EPO patent applications.

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File URL: https://dipot.ulb.ac.be/dspace/bitstream/2013/53916/1/RePEc_sol_wpaper_06-018.pdf
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Paper provided by ULB -- Universite Libre de Bruxelles in its series Working Papers CEB with number 06-018.RS.

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Length: 26 p.
Date of creation: 2006
Date of revision:
Publication status: Published by:
Handle: RePEc:sol:wpaper:06-018
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  1. Carine Peeters & Bruno Pottelsberghe de la Potterie, 2006. "Innovation strategy and the patenting behavior of firms," Journal of Evolutionary Economics, Springer, vol. 16(1), pages 109-135, April.
  2. Jaffe, Adam B., 2000. "The U.S. patent system in transition: policy innovation and the innovation process," Research Policy, Elsevier, vol. 29(4-5), pages 531-557, April.
  3. Nicolas van Zeebroeck & Bruno Van Pottelsberghe, 2008. "Filing strategies and patent value," Working Papers CEB 08-016.RS, ULB -- Universite Libre de Bruxelles.
  4. 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.
  5. Hausman, Jerry & Hall, Bronwyn H & Griliches, Zvi, 1984. "Econometric Models for Count Data with an Application to the Patents-R&D Relationship," Econometrica, Econometric Society, vol. 52(4), pages 909-38, July.
  6. Bruno Van Pottelsberghe & Dominique Guellec, 2000. "Applications grants and the value of patents," ULB Institutional Repository 2013/6229, ULB -- Universite Libre de Bruxelles.
  7. Bruno Van Pottelsberghe & Didier François, 2009. "The cost factor in patent systems," ULB Institutional Repository 2013/13422, ULB -- Universite Libre de Bruxelles.
  8. Bruno Van Pottelsberghe & Dominique Guellec, 2001. "The internationalisation of technology analysed with patent data," ULB Institutional Repository 2013/6223, ULB -- Universite Libre de Bruxelles.
  9. Bruno Van Pottelsberghe & Dominique Guellec, 2002. "The value of patents and patenting strategies: countries and technology areas patterns," ULB Institutional Repository 2013/6217, ULB -- Universite Libre de Bruxelles.
  10. Hall, Bronwyn H. & Graham, Stuart J. H. & Harhoff, Dietmar & Mowery, David C., 2003. "Prospects for Improving U.S. Patent Quality via Post-grant Opposition," Department of Economics, Working Paper Series qt8fg5b6bs, Department of Economics, Institute for Business and Economic Research, UC Berkeley.
  11. 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.
  12. Bruno Van Pottelsberghe & Herman Denis & Dominique Guellec, 2001. "Using patent counts for cross-country comparisons of technology output," ULB Institutional Repository 2013/6227, ULB -- Universite Libre de Bruxelles.
  13. Nicolas van Zeebroeck & Bruno Van Pottelsberghe & Niels Stevnsborg & Dominique Guellec & Eugenio Archontopoulos, 2008. "Patent inflation in Europe," ULB Institutional Repository 2013/6389, ULB -- Universite Libre de Bruxelles.
  14. Jean O. Lanjouw & Mark Schankerman, 1999. "The Quality of Ideas: Measuring Innovation with Multiple Indicators," NBER Working Papers 7345, National Bureau of Economic Research, Inc.
  15. Tong, Xuesong & Frame, J. Davidson, 1994. "Measuring national technological performance with patent claims data," Research Policy, Elsevier, vol. 23(2), pages 133-141, March.
  16. Carl Shapiro, 2004. "Navigating the Patent Thicket: Cross Licenses, Patent Pools and Standard Setting," Levine's Working Paper Archive 122247000000000539, David K. Levine.
  17. Paul H. Jensen & Alfons Palangkaraya & Elizabeth Webster, 2005. "Patent Application Outcomes across the Trilateral Patent Offices," Melbourne Institute Working Paper Series wp2005n05, Melbourne Institute of Applied Economic and Social Research, The University of Melbourne.
  18. Dominique Guellec & Bruno Van Pottelsberghe & Nicolas van Zeebroeck, 2007. "Patent as a market instrument," ULB Institutional Repository 2013/60728, ULB -- Universite Libre de Bruxelles.
  19. Nicolas van Zeebroeck & Bruno Van Pottelsberghe & Wook Han, 2005. "Issues in measuring the degree of technological specialisation with patent data," Working Papers CEB 05-016.RS, ULB -- Universite Libre de Bruxelles.
  20. Cameron, A Colin & Trivedi, Pravin K, 1986. "Econometric Models Based on Count Data: Comparisons and Applications of Some Estimators and Tests," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 1(1), pages 29-53, January.
  21. Archontopoulos, Eugenio & Guellec, Dominique & Stevnsborg, Niels & van Pottelsberghe de la Potterie, Bruno & van Zeebroeck, Nicolas, 2006. "When Small is Beautiful: Measuring the Evolution and Consequences of the Voluminosity of Patent Applications at the EPO," CEPR Discussion Papers 5970, C.E.P.R. Discussion Papers.
  22. Mosahid Khan & Hélène Dernis, 2005. "Impact of Patent Co-Operation Treaty Data on Epo Patent Statistics and Improving the Timeliness of EPO Indicators," OECD Science, Technology and Industry Working Papers 2005/2, OECD Publishing.
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  24. Kortum, Samuel & Lerner, Josh, 1999. "What is behind the recent surge in patenting?1," Research Policy, Elsevier, vol. 28(1), pages 1-22, January.
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