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Renewal Study of European Patents: A Three-country Comparison

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  • Deng, Yi

    () (Department of Economics, Southern Methodist University)

Abstract

This paper utilizes the renewal records of the EPO (European Patent Office) patents and estimates the patent value distributions in Germany, France and the U.K. We extend the patent renewal study for the same three countries in Pakes (1986) by examining how the possible patent infringments affect patent holders' renewal decision makings as well as patent evaluations. In addition, the utilization of EPO-route patent renewal records in our study corrects the possible data inconsistancy problem in Pakes (1986). Estimation results indicate a highly skewed distribution of patent values in all three countries, as found by Pakes (1986). However, the quality and the private value of the EPO patents in our sample are substantially higher-the estimated median values are three to ten times higher than those of the national patents in Pakes (1986). More interestingly, the EPO patent holders are found to be much more willing to invest resources on finding new commercialization strategies in order to exploit their patented idea than the national patent holders in Pakes (1986).

Suggested Citation

  • Deng, Yi, 2005. "Renewal Study of European Patents: A Three-country Comparison," Departmental Working Papers 0514, Southern Methodist University, Department of Economics.
  • Handle: RePEc:smu:ecowpa:0514
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    File URL: ftp://ftp1.economics.smu.edu/WorkingPapers/2005/Deng/renew3nations_july2005.pdf
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    References listed on IDEAS

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    1. Lanjouw, Jean O & Schankerman, Mark, 2001. "Characteristics of Patent Litigation: A Window on Competition," RAND Journal of Economics, The RAND Corporation, vol. 32(1), pages 129-151, Spring.
    2. Zvi Griliches, 1998. "Patent Statistics as Economic Indicators: A Survey," NBER Chapters,in: R&D and Productivity: The Econometric Evidence, pages 287-343 National Bureau of Economic Research, Inc.
    3. Jean Lanjouw & Josh Lerner, 1998. "The Enforcement of Intellectual Property Rights: A Survey of the Empirical Literature," Annals of Economics and Statistics, GENES, issue 49-50, pages 223-246.
    4. Deng, Yi, 2005. "Private Value of European Patents," Departmental Working Papers 0513, Southern Methodist University, Department of Economics.
    5. 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.
    6. Pakes, Ariel S, 1986. "Patents as Options: Some Estimates of the Value of Holding European Patent Stocks," Econometrica, Econometric Society, vol. 54(4), pages 755-784, July.
    7. repec:adr:anecst:y:1998:i:49-50 is not listed on IDEAS
    8. 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.
    9. repec:fth:harver:1473 is not listed on IDEAS
    10. repec:adr:anecst:y:1998:i:49-50:p:08 is not listed on IDEAS
    11. Samuel Kortum, 1995. "Research and productivity growth: theory and evidence from patent data," Finance and Economics Discussion Series 95-2, Board of Governors of the Federal Reserve System (U.S.).
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    Citations

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    Cited by:

    1. 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.
    2. 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.
    3. Yi Deng, 2003. "A Dynamic Stochastic Analysis of International Patent Application and Renewal Processes," Computing in Economics and Finance 2003 189, Society for Computational Economics.
    4. Deng, Yi, 2007. "The effects of patent regime changes: A case study of the European patent office," International Journal of Industrial Organization, Elsevier, vol. 25(1), pages 121-138, February.
    5. Nicolas van Zeebroeck, 2011. "Long Live Patents: the Increasing Life Expectancy of Patent Applications and its Determinants," Review of Economics and Institutions, Università di Perugia, vol. 2(3).
    6. Nicolas van Zeebroeck, 2009. "From patent renewals to applications survival: do portfolio management strategies play a role in patent length?," Working Papers CEB 09-028.RS, ULB -- Universite Libre de Bruxelles.

    More about this item

    Keywords

    Patent Renewal; Patent Infringment; Patent Value;

    JEL classification:

    • O34 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Intellectual Property and Intellectual Capital

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