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Probabilistic Patents

Author

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  • Mark A. Lemley
  • Carl Shapiro

Abstract

Economists often assume that a patent gives its owner a well-defined legal right to exclude others from practicing the invention described in the patent. In practice, however, the rights afforded to patent holders are highly uncertain. Under patent law, a patent is no guarantee of exclusion but more precisely a legal right to try to exclude. Since only 0.1% of all patents are litigated to trial, and since nearly half of fully litigated patents are declared invalid, this distinction is critical to understanding the economic impact of patents. The growing recognition among economists and legal scholars that patents are probabilistic property rights has significant implications for our understanding of patents in four important areas: (1) reform of the system by which patents are granted; (2) the legal treatment of patents in litigation; (3) the incentives of patent holders and alleged infringers to settle their disputes through licensing or cross-licensing agreements rather than litigate them to completion; and (4) the antitrust limits on agreements between rivals that settle actual or threatened patent litigation.

Suggested Citation

  • Mark A. Lemley & Carl Shapiro, 2005. "Probabilistic Patents," Journal of Economic Perspectives, American Economic Association, vol. 19(2), pages 75-98, Spring.
  • Handle: RePEc:aea:jecper:v:19:y:2005:i:2:p:75-98
    Note: DOI: 10.1257/0895330054048650
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    File URL: http://www.aeaweb.org/articles.php?doi=10.1257/0895330054048650
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    References listed on IDEAS

    as
    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. James Bessen & Robert M. Hunt, 2007. "An Empirical Look at Software Patents," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 16(1), pages 157-189, March.
    3. Carl Shapiro, 2001. "Navigating the Patent Thicket: Cross Licenses, Patent Pools, and Standard Setting," NBER Chapters, in: Innovation Policy and the Economy, Volume 1, pages 119-150, National Bureau of Economic Research, Inc.
    4. Shapiro, Carl, 2003. "Antitrust Limits to Patent Settlements," RAND Journal of Economics, The RAND Corporation, vol. 34(2), pages 391-411, Summer.
    5. Jean O. Lanjouw & Ariel Pakes & Jonathan Putnam, 1998. "How to Count Patents and Value Intellectual Property: The Uses of Patent Renewal and Application Data," Journal of Industrial Economics, Wiley Blackwell, vol. 46(4), pages 405-432, December.
    6. 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.
    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 755-784, July.
    8. Ilya Segal, 1999. "Contracting with Externalities," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 114(2), pages 337-388.
    9. Harhoff, Dietmar & Scherer, Frederic M. & Vopel, Katrin, 2004. "Erratum to "Citations, family size, opposition and the value of patent rights" [Research Policy 32 (2003) 1343-1363]," Research Policy, Elsevier, vol. 33(2), pages 363-364, March.
    10. Josh Lerner, 2002. "Where Does State Street Lead? A First Look at Finance Patents, 1971 to 2000," Journal of Finance, American Finance Association, vol. 57(2), pages 901-930, April.
    11. Marco Alan C., 2004. "The Selection Effects (and Lack Thereof) in Patent Litigation: Evidence from Trials," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 4(1), pages 1-47, September.
    12. Jay Pil Choi, 2010. "Patent Pools And Cross-Licensing In The Shadow Of Patent Litigation," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 51(2), pages 441-460, May.
    13. repec:bla:jindec:v:46:y:1998:i:4:p:405-32 is not listed on IDEAS
    14. Lerner, Josh, 1995. "Patenting in the Shadow of Competitors," Journal of Law and Economics, University of Chicago Press, vol. 38(2), pages 463-495, October.
    15. F. M. Scherer, 2005. "Patents," Books, Edward Elgar Publishing, number 3903.
    16. Reinganum, Jennifer F., 1989. "The timing of innovation: Research, development, and diffusion," Handbook of Industrial Organization, in: R. Schmalensee & R. Willig (ed.), Handbook of Industrial Organization, edition 1, volume 1, chapter 14, pages 849-908, Elsevier.
    17. Harhoff, Dietmar & Reitzig, Markus, 2004. "Determinants of opposition against EPO patent grants--the case of biotechnology and pharmaceuticals," International Journal of Industrial Organization, Elsevier, vol. 22(4), pages 443-480, April.
    18. Nancy T. Gallini, 2002. "The Economics of Patents: Lessons from Recent U.S. Patent Reform," Journal of Economic Perspectives, American Economic Association, vol. 16(2), pages 131-154, Spring.
    19. Hall, Bronwyn H & Ziedonis, Rosemarie Ham, 2001. "The Patent Paradox Revisited: An Empirical Study of Patenting in the U.S. Semiconductor Industry, 1979-1995," RAND Journal of Economics, The RAND Corporation, vol. 32(1), pages 101-128, Spring.
    20. George L. Priest & Benjamin Klein, 1984. "The Selection of Disputes for Litigation," The Journal of Legal Studies, University of Chicago Press, vol. 13(1), pages 1-56, January.
    21. 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.
    22. 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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