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Modeling patent clarity

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  • Ashtor, Jonathan H.

Abstract

This study uses machine learning techniques to model patent claim clarity and analyze how clarity relates to important patent policy objectives. Specifically, machine learning models are trained on a dataset of over 600,000 U.S. patent applications that were (or were not) rejected for indefiniteness, a proxy for claim clarity, using features based on the linguistic attributes of each application. The model is then applied to over 2 million issued patents and their corresponding applications, deriving estimates of the clarity of each patent's claim set at application and issuance.

Suggested Citation

  • Ashtor, Jonathan H., 2022. "Modeling patent clarity," Research Policy, Elsevier, vol. 51(2).
    • Handle: RePEc:eee:respol:v:51:y:2022:i:2:s0048733321002109
    DOI: 10.1016/j.respol.2021.104415
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    1. Hegde, Deepak & Sampat, Bhaven, 2009. "Examiner citations, applicant citations, and the private value of patents," Economics Letters, Elsevier, vol. 105(3), pages 287-289, December.
    2. 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.
    3. Juan Alcácer & Michelle Gittelman, 2006. "Patent Citations as a Measure of Knowledge Flows: The Influence of Examiner Citations," The Review of Economics and Statistics, MIT Press, vol. 88(4), pages 774-779, November.
    4. Unknown, 1967. "Index," 1967 Conference, August 21-30, 1967, Sydney, New South Wales, Australia 209796, International Association of Agricultural Economists.
    5. Bronwyn H. Hall & Adam Jaffe & Manuel Trajtenberg, 2005. "Market Value and Patent Citations," RAND Journal of Economics, The RAND Corporation, vol. 36(1), pages 16-38, Spring.
    6. Kong, Nancy & Dulleck, Uwe & Jaffe, Adam B. & Sun, Shupeng & Vajjala, Sowmya, 2023. "Linguistic metrics for patent disclosure: Evidence from university versus corporate patents," Research Policy, Elsevier, vol. 52(2).
    7. Ricardo J. Caballero & Adam B. Jaffe, 1993. "How High Are the Giants' Shoulders: An Empirical Assessment of Knowledge Spillovers and Creative Destruction in a Model of Economic Growth," NBER Chapters, in: NBER Macroeconomics Annual 1993, Volume 8, pages 15-86, National Bureau of Economic Research, Inc.
    8. Marco, Alan C. & Sarnoff, Joshua D. & deGrazia, Charles A.W., 2019. "Patent claims and patent scope," Research Policy, Elsevier, vol. 48(9), pages 1-1.
    9. Alcácer, Juan & Gittelman, Michelle & Sampat, Bhaven, 2009. "Applicant and examiner citations in U.S. patents: An overview and analysis," Research Policy, Elsevier, vol. 38(2), pages 415-427, March.
    10. Marco, Alan C., 2007. "The dynamics of patent citations," Economics Letters, Elsevier, vol. 94(2), pages 290-296, February.
    11. Bronwyn H. Hall & Adam B. Jaffe & Manuel Trajtenberg, 2001. "The NBER Patent Citation Data File: Lessons, Insights and Methodological Tools," NBER Working Papers 8498, National Bureau of Economic Research, Inc.
    12. Jonathan H. Ashtor, 2019. "Investigating Cohort Similarity as an Ex Ante Alternative to Patent Forward Citations," Journal of Empirical Legal Studies, John Wiley & Sons, vol. 16(4), pages 848-880, December.
    13. Manuel Trajtenberg & Rebecca Henderson & Adam Jaffe, 1997. "University Versus Corporate Patents: A Window On The Basicness Of Invention," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 5(1), pages 19-50.
    14. David S. Abrams & Ufuk Akcigit & Jillian Popadak, 2013. "Patent Value and Citations: Creative Destruction or Strategic Disruption?," PIER Working Paper Archive 13-065, Penn Institute for Economic Research, Department of Economics, University of Pennsylvania.
    15. Ashish Arora & Sharon Belenzon & Honggi Lee, 2018. "Reversed citations and the localization of knowledge spillovers," Journal of Economic Geography, Oxford University Press, vol. 18(3), pages 495-521.
    16. Jan M. Gerken & Martin G. Moehrle, 2012. "A new instrument for technology monitoring: novelty in patents measured by semantic patent analysis," Scientometrics, Springer;Akadémiai Kiadó, vol. 91(3), pages 645-670, June.
    17. Ryan Whalen & Alina Lungeanu & Leslie DeChurch & Noshir Contractor, 2020. "Patent Similarity Data and Innovation Metrics," Journal of Empirical Legal Studies, John Wiley & Sons, vol. 17(3), pages 615-639, September.
    18. Scott Deerwester & Susan T. Dumais & George W. Furnas & Thomas K. Landauer & Richard Harshman, 1990. "Indexing by latent semantic analysis," Journal of the American Society for Information Science, Association for Information Science & Technology, vol. 41(6), pages 391-407, September.
    19. 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).
    20. Peter Thompson, 2006. "Patent Citations and the Geography of Knowledge Spillovers: Evidence from Inventor- and Examiner-added Citations," The Review of Economics and Statistics, MIT Press, vol. 88(2), pages 383-388, May.
    21. Alberto Galasso & Mark Schankerman, 2014. "Patents and Cumulative Innovation: Causal Evidence from the Courts," NBER Working Papers 20269, National Bureau of Economic Research, Inc.
    22. Jeffrey Kuhn & Kenneth Younge & Alan Marco, 2020. "Patent citations reexamined," RAND Journal of Economics, RAND Corporation, vol. 51(1), pages 109-132, March.
    23. Jeffrey M. Kuhn & Neil C. Thompson, 2019. "How to Measure and Draw Causal Inferences with Patent Scope," International Journal of the Economics of Business, Taylor & Francis Journals, vol. 26(1), pages 5-38, January.
    24. Cotropia, Christopher A. & Lemley, Mark A. & Sampat, Bhaven, 2013. "Do applicant patent citations matter?," Research Policy, Elsevier, vol. 42(4), pages 844-854.
    25. Alberto Abadie, 2021. "Using Synthetic Controls: Feasibility, Data Requirements, and Methodological Aspects," Journal of Economic Literature, American Economic Association, vol. 59(2), pages 391-425, June.
    26. Manuel Trajtenberg & Adam B. Jaffe & Michael S. Fogarty, 2000. "Knowledge Spillovers and Patent Citations: Evidence from a Survey of Inventors," American Economic Review, American Economic Association, vol. 90(2), pages 215-218, May.
    27. Jean O. Lanjouw & Mark Schankerman, 2004. "Patent Quality and Research Productivity: Measuring Innovation with Multiple Indicators," Economic Journal, Royal Economic Society, vol. 114(495), pages 441-465, April.
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    Cited by:

    1. Kong, Nancy & Dulleck, Uwe & Jaffe, Adam B. & Sun, Shupeng & Vajjala, Sowmya, 2023. "Linguistic metrics for patent disclosure: Evidence from university versus corporate patents," Research Policy, Elsevier, vol. 52(2).
    2. Scott, Peter & Spadavecchia, Anna, 2023. "Patents, industry control, and the rise of the giant American corporation," Research Policy, Elsevier, vol. 52(1).

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