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Renewal Study of European Patents: A Three-country Comparison

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Author Info
Deng, Yi () (Department of Economics, Southern Methodist University)

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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).

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Paper provided by Southern Methodist University, Department of Economics in its series Departmental Working Papers with number 0514.

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Length: 23 pages
Date of creation: Jul 2005
Date of revision:
Handle: RePEc:smu:ecowpa:0514

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Postal: Department of Economics, P.O. Box 750496, Southern Methodist University, Dallas, TX 75275-0496
Phone: 214-768-2715
Fax: 214-768-1821
Web page: http://www.smu.edu/economics

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Related research
Keywords: Patent Renewal; Patent Infringment; Patent Value;

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Find related papers by JEL classification:
O34 - Economic Development, Technological Change, and Growth - - Technological Change - - - Intellectual Property Rights

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References listed on IDEAS
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.:
  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 129-51, Spring.
  2. Griliches, Zvi, 1990. "Patent Statistics as Economic Indicators: A Survey," Journal of Economic Literature, American Economic Association, vol. 28(4), pages 1661-1707, December. [Downloadable!] (restricted)
    Other versions:
  3. Jean O. Lanjouw & Josh Lerner, 1997. "The Enforcement of Intellectual Property Rights: A Survey of the Empirical Literature," NBER Working Papers 6296, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
    Other versions:
  4. 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. [Downloadable!] (restricted)
  5. Deng, Yi, 2005. "Private Value of European Patents," Departmental Working Papers 0513, Southern Methodist University, Department of Economics. [Downloadable!]
  6. repec:fth:harver:1473 is not listed on IDEAS
  7. Pakes, Ariel S, 1986. "Patents as Options: Some Estimates of the Value of Holding European Patent Stocks," Econometrica, Econometric Society, vol. 54(4), pages 755-84, July. [Downloadable!] (restricted)
  8. 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. [Downloadable!] (restricted)
  9. Ariel Pakes, 1986. "Patents as Options: Some Estimates of the Value of Holding European Patent Stocks," NBER Working Papers 1340, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  10. 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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Cited by:
(explanations, 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.)

  1. Deng, Yi, 2005. "The Effects of Patent Regime Changes: A Case Study of the European Patent Office," Departmental Working Papers 0512, Southern Methodist University, Department of Economics. [Downloadable!]
    Other versions:
  2. Nicolas van Zeebroeck, 2007. "The puzzle of patent value indicators," Working Papers CEB 07-023.RS, Université Libre de Bruxelles, Solvay Brussels School of Economics and Management, Centre Emile Bernheim (CEB). [Downloadable!]
  3. Nicolas van Zeebroeck, 2007. "Patents only live twice: a patent survival analysis in Europe," Working Papers CEB 07-028.RS, Université Libre de Bruxelles, Solvay Brussels School of Economics and Management, Centre Emile Bernheim (CEB). [Downloadable!]
  4. Deng, Yi, 2005. "A Dynamic Stochastic Analysis of International Patent Application and Renewal Processes," Departmental Working Papers 0515, Southern Methodist University, Department of Economics. [Downloadable!]
    Other versions:
  5. 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, Université Libre de Bruxelles, Solvay Brussels School of Economics and Management, Centre Emile Bernheim (CEB). [Downloadable!]
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