IDEAS home Printed from https://ideas.repec.org/p/eti/dpaper/17040.html
   My bibliography  Save this paper

Information Constraint of the Patent Office and Examination Quality: Evidence from the effects of initiation lags

Author

Listed:
  • NAGAOKA Sadao
  • YAMAUCHI Isamu

Abstract

We examine how significantly the information constraint of the patent office affects its examination quality in terms of type I and type II errors (wrong grants and wrong rejections). For identification, we exploit the exogenous policy change in Japan which accelerated the timing of examination. Such acceleration increased significantly both the grant rate and the frequency of appeals against the rejections of the patent office, despite the higher examination request rates. These results reveal that more information constraint increases both types of errors, but the increase in wrong grants is dominant, consistent with the design of the patent examination system where an examiner has the burden of proof in rejections and the applicant has the chance to challenge the rejections. These effects become stronger in technology sectors with stronger information constraint: those sectors which have both short technology cycles and early examination requests so that the age of relevant prior art at examination is young. We also show that longer initiation lags for an international application with foreign priority significantly reduces its grant rate. These findings suggest that the patent office is under information constraint and a better information infrastructure will significantly improve patent quality.

Suggested Citation

  • NAGAOKA Sadao & YAMAUCHI Isamu, 2017. "Information Constraint of the Patent Office and Examination Quality: Evidence from the effects of initiation lags," Discussion papers 17040, Research Institute of Economy, Trade and Industry (RIETI).
    • Handle: RePEc:eti:dpaper:17040
    as

    Download full text from publisher

    File URL: https://www.rieti.go.jp/jp/publications/dp/17e040.pdf
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Mark A. Lemley & Carl Shapiro, 2005. "Probabilistic Patents," Journal of Economic Perspectives, American Economic Association, vol. 19(2), pages 75-98, Spring.
    2. Caillaud, Bernard & Duchêne, Anne, 2011. "Patent office in innovation policy: Nobody's perfect," International Journal of Industrial Organization, Elsevier, vol. 29(2), pages 242-252, March.
    3. Bhaven N. Sampat, 2010. "When Do Applicants Search for Prior Art?," Journal of Law and Economics, University of Chicago Press, vol. 53(2), pages 399-416, May.
    4. 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.
    5. Yamauchi, Isamu & Nagaoka, Sadao, 2015. "Does the outsourcing of prior art search increase the efficiency of patent examination? Evidence from Japan," Research Policy, Elsevier, vol. 44(8), pages 1601-1614.
    6. Goto, Akira & Motohashi, Kazuyuki, 2007. "Construction of a Japanese Patent Database and a first look at Japanese patenting activities," Research Policy, Elsevier, vol. 36(9), pages 1431-1442, November.
    7. Mark A. Lemley & Bhaven Sampat, 2012. "Examiner Characteristics and Patent Office Outcomes," The Review of Economics and Statistics, MIT Press, vol. 94(3), pages 817-827, August.
    8. Joseph Farrell & Carl Shapiro, 2008. "How Strong Are Weak Patents?," American Economic Review, American Economic Association, vol. 98(4), pages 1347-1369, September.
    9. Dietmar Harhoff & Stefan Wagner, 2009. "The Duration of Patent Examination at the European Patent Office," Management Science, INFORMS, vol. 55(12), pages 1969-1984, December.
    10. Yamauchi, Isamu & Nagaoka, Sadao, 2015. "An economic analysis of deferred examination system: Evidence from a policy reform in Japan," International Journal of Industrial Organization, Elsevier, vol. 39(C), pages 19-28.
    11. Gaétan de Rassenfosse & William E. Griffiths & Adam B. Jaffe & Elizabeth Webster, 2021. "Low-Quality Patents in the Eye of the Beholder: Evidence from Multiple Examiners," The Journal of Law, Economics, and Organization, Oxford University Press, vol. 37(3), pages 607-636.
    12. James Bessen & Michael J. Meurer, 2008. "Introduction to Patent Failure: How Judges, Bureaucrats, and Lawyers Put Innovators at Risk," Introductory Chapters, in: Patent Failure: How Judges, Bureaucrats, and Lawyers Put Innovators at Risk, Princeton University Press.
    13. Pierre Régibeau & Katharine Rockett, 2010. "Innovation Cycles And Learning At The Patent Office: Does The Early Patent Get The Delay?," Journal of Industrial Economics, Wiley Blackwell, vol. 58(2), pages 222-246, June.
    14. Elizabeth Webster & Paul H. Jensen & Alfons Palangkaraya, 2014. "Patent examination outcomes and the national treatment principle," RAND Journal of Economics, RAND Corporation, vol. 45(2), pages 449-469, June.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Okada, Yoshimi, 2020. "The Screening Function of International Search Authorities under the Patent Cooperation Treaty: Evidence from the Japanese Government’s Policy Change in 1999," IIR Working Paper 20-13, Institute of Innovation Research, Hitotsubashi University.
    2. Sun, Zhen & Wright, Brian D., 2022. "Citations backward and forward: Insights into the patent examiner's role," Research Policy, Elsevier, vol. 51(7).
    3. Zhu, Kejia & Malhotra, Shavin & Li, Yaohan, 2022. "Technological diversity of patent applications and decision pendency," Research Policy, Elsevier, vol. 51(1).
    4. Kwon, Seokbeom, 2021. "The prevalence of weak patents in the United States: A new method to identify weak patents and the implications for patent policy," Technology in Society, Elsevier, vol. 64(C).

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Nagaoka, Sadao & Yamauchi, Isamu, 2022. "Information constraints and examination quality in patent offices: The effect of initiation lags," International Journal of Industrial Organization, Elsevier, vol. 82(C).
    2. Andrew Eckert & Corinne Langinier, 2014. "A Survey Of The Economics Of Patent Systems And Procedures," Journal of Economic Surveys, Wiley Blackwell, vol. 28(5), pages 996-1015, December.
    3. Zhu, Kejia & Malhotra, Shavin & Li, Yaohan, 2022. "Technological diversity of patent applications and decision pendency," Research Policy, Elsevier, vol. 51(1).
    4. Lei, Zhen & Wright, Brian D., 2017. "Why weak patents? Testing the examiner ignorance hypothesis," Journal of Public Economics, Elsevier, vol. 148(C), pages 43-56.
    5. Yamauchi, Isamu & Nagaoka, Sadao, 2015. "Does the outsourcing of prior art search increase the efficiency of patent examination? Evidence from Japan," Research Policy, Elsevier, vol. 44(8), pages 1601-1614.
    6. Drivas, Kyriakos & Kaplanis, Ioannis, 2020. "The role of international collaborations in securing the patent grant," Journal of Informetrics, Elsevier, vol. 14(4).
    7. Yoshimi Okada & Yusuke Naito & Sadao Nagaoka, 2018. "Making the patent scope consistent with the invention: Evidence from Japan," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 27(3), pages 607-625, September.
    8. Zhang, Gupeng & Xiong, Libin & Duan, Hongbo & Huang, Dujuan, 2020. "Obtaining certainty vs. creating uncertainty: Does firms’ patent filing strategy work as expected?," Technological Forecasting and Social Change, Elsevier, vol. 160(C).
    9. Bekkers, Rudi & Martinelli, Arianna & Tamagni, Federico, 2020. "The impact of including standards-related documentation in patent prior art: Evidence from an EPO policy change," Research Policy, Elsevier, vol. 49(7).
    10. Yamauchi, Isamu & Nagaoka, Sadao & 長岡, 貞男, 2013. "Does the outsourcing of prior art search increase the efficiency of patent examination?," IIR Working Paper 13-12, Institute of Innovation Research, Hitotsubashi University.
    11. Gaétan de Rassenfosse & Adam B. Jaffe, 2018. "Are patent fees effective at weeding out low‐quality patents?," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 27(1), pages 134-148, March.
    12. Gaétan De Rassenfosse & Paul H. Jensen & T'Mir Julius & Alfons Palangkaraya & Elizabeth Webster, 2023. "Is the Patent System an Even Playing Field? The Effect of Patent Attorney Firms," Journal of Industrial Economics, Wiley Blackwell, vol. 71(1), pages 124-142, March.
    13. Kwon, Seokbeom, 2021. "The prevalence of weak patents in the United States: A new method to identify weak patents and the implications for patent policy," Technology in Society, Elsevier, vol. 64(C).
    14. Higham, Kyle & de Rassenfosse, Gaétan & Jaffe, Adam B., 2021. "Patent Quality: Towards a Systematic Framework for Analysis and Measurement," Research Policy, Elsevier, vol. 50(4).
    15. Tong, Tony W. & Zhang, Kun & He, Zi-Lin & Zhang, Yuchen, 2018. "What determines the duration of patent examination in China? An outcome-specific duration analysis of invention patent applications at SIPO," Research Policy, Elsevier, vol. 47(3), pages 583-591.
    16. Gaétan de Rassenfosse & Reza Hosseini, 2020. "Discrimination against foreigners in the U.S. patent system," Journal of International Business Policy, Palgrave Macmillan, vol. 3(4), pages 349-366, December.
    17. Kenneth Zahringer & Christos Kolympiris & Nicholas Kalaitzandonakes, 2018. "Time to patent at the USPTO: the case of emerging entrepreneurial firms," The Journal of Technology Transfer, Springer, vol. 43(4), pages 923-952, August.
    18. deGrazia, Charles A.W. & Pairolero, Nicholas A. & Teodorescu, Mike H.M., 2021. "Examination incentives, learning, and patent office outcomes: The use of examiner’s amendments at the USPTO," Research Policy, Elsevier, vol. 50(10).
    19. Jussi Heikkilä & Michael Verba, 2018. "The role of utility models in patent filing strategies: evidence from European countries," Scientometrics, Springer;Akadémiai Kiadó, vol. 116(2), pages 689-719, August.
    20. Gaétan de Rassenfosse & Emilio Raiteri, 2022. "Technology Protectionism and the Patent System: Evidence from China," Journal of Industrial Economics, Wiley Blackwell, vol. 70(1), pages 1-43, March.

    More about this item

    NEP fields

    This paper has been announced in the following NEP Reports:

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eti:dpaper:17040. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: TANIMOTO, Toko (email available below). General contact details of provider: https://edirc.repec.org/data/rietijp.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.