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Applicant behaviour in patent examination request lags

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  • Palangkaraya, Alfons
  • Jensen, Paul H.
  • Webster, Elizabeth

Abstract

One component of the duration of pending patents - why applicants choose to delay the examination process - is modelled. We use a matched sample of 9597 patent applications to examine this issue. Controlling for differences between patent offices, we find evidence that applicants create investment uncertainty by delaying decisions to request patent examination.

Suggested Citation

  • Palangkaraya, Alfons & Jensen, Paul H. & Webster, Elizabeth, 2008. "Applicant behaviour in patent examination request lags," Economics Letters, Elsevier, vol. 101(3), pages 243-245, December.
    • Handle: RePEc:eee:ecolet:v:101:y:2008:i:3:p:243-245
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    References listed on IDEAS

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    1. Régibeau, P & Rockett, K, 2003. "Are More Important Patents Approved More Slowly and Should They Be?," Economics Discussion Papers 2850, University of Essex, Department of Economics.
    2. Popp David & Juhl Ted & Johnson Daniel K.N., 2004. "Time In Purgatory: Examining the Grant Lag for U.S. Patent Applications," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 4(1), pages 1-45, November.
    3. Ekaterini Kyriazidou, 1997. "Estimation of a Panel Data Sample Selection Model," Econometrica, Econometric Society, vol. 65(6), pages 1335-1364, November.
    4. 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.
    5. 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.
    6. Webster, Elizabeth & Palangkaraya, Alfons & Jensen, Paul H., 2007. "Characteristics of international patent application outcomes," Economics Letters, Elsevier, vol. 95(3), pages 362-368, June.
    Full references (including those not matched with items on IDEAS)

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