1. Joshua Lerner, 1994. "The Importance of Patent Scope: An Empirical Analysis," RAND Journal of Economics, The RAND Corporation, vol. 25(2), pages 319-333, Summer. [Downloadable!] (restricted)
2. Mowery, David C. & Ziedonis, Arvids A., 2002. "Academic patent quality and quantity before and after the Bayh-Dole act in the United States," Research Policy, Elsevier, vol. 31(3), pages 399-418, March. [Downloadable!] (restricted)
3. 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:
   • Zvi Griliches, 1991. "Patent Statistics as Economic Indicators: A Survey," NBER Working Papers 3301, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
   • Zvi Griliches, 1998. "Patent Statistics as Economic Indicators: A Survey," NBER Chapters, in: R&D and Productivity: The Econometric Evidence, pages 287-343 National Bureau of Economic Research, Inc. [Downloadable!]
4. Jean Olson Lanjouw, 1993. "Patent Protection: Of What Value and for How Long?," NBER Working Papers 4475, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
5. Jaffe, A.B. & Trajtenberg, M., 1992. "Geographic Localization of Knowledge Spillovers as Evidenced by Patent Citations," Papers 14-92, Tel Aviv.
   Other versions:
   • Adam B. Jaffe & Manuel Trajtenberg & Rebecca Henderson, 1992. "Geographic Localization of Knowledge Spillovers as Evidenced by Patent Citations," NBER Working Papers 3993, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
   • Jaffe, Adam B & Trajtenberg, Manuel & Henderson, Rebecca, 1993. "Geographic Localization of Knowledge Spillovers as Evidenced by Patent Citations," The Quarterly Journal of Economics, MIT Press, vol. 108(3), pages 577-98, August. [Downloadable!] (restricted)
6. 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:
   • Jean Lanjouw & Josh Lerner, 1998. "The Enforcement of Intellectual Property Rights: A Survey of the Empirical Literature," Annales d'Economie et de Statistique, ADRES, issue 49-50, pages 09, Janvier-J. [Downloadable!]
7. Zvi Griliches, 1989. "Patents: Recent Trends and Puzzles," NBER Working Papers 2922, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
8. Dominique Guellec & Bruno van Pottelsberghe de la Potterie, 2002. "The Value of Patents and Patenting Strategies: Countries and Technology Areas Patterns," Economics of Innovation and New Technology, Taylor and Francis Journals, vol. 11(2), pages 133-148, January. [Downloadable!] (restricted)
9. Scherer, F. M. & Harhoff, Dietmar, 2000. "Technology policy for a world of skew-distributed outcomes," Research Policy, Elsevier, vol. 29(4-5), pages 559-566, April. [Downloadable!] (restricted)
10. Tong, Xuesong & Frame, J. Davidson, 1994. "Measuring national technological performance with patent claims data," Research Policy, Elsevier, vol. 23(2), pages 133-141, March. [Downloadable!] (restricted)
11. repec:fth:harver:1473 is not listed on IDEAS
12. Guellec, Dominique & Pottelsberghe de la Potterie, Bruno v., 2000. "Applications, grants and the value of patent," Economics Letters, Elsevier, vol. 69(1), pages 109-114, October. [Downloadable!] (restricted)
13. Jaffe, Adam B, 1989. "Real Effects of Academic Research," American Economic Review, American Economic Association, vol. 79(5), pages 957-70, December. [Downloadable!] (restricted)
14. Adam B. Jaffe & Manuel Trajtenberg, 1996. "Flows of Knowledge from Universities and Federal Labs: Modeling the Flowof Patent Citations Over Time and Across Institutional and Geographic Boundari," NBER Working Papers 5712, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
15. 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)
16. Dietmar Harhoff & Francis Narin & Frederic M. Scherer & Katrin Vopel, 1997. "Citation Frequency and the Value of Patented Innovation," CIG Working Papers FS IV 97-26, Wissenschaftszentrum Berlin (WZB), Research Unit: Competition and Innovation (CIG). [Downloadable!]
    Other versions:
    • Vopel, Katrin & Scherer, Frederic M. & Narin, Francis & Harhoff, Dietmar, 1997. "Citation Frequency and the Value of Patented Innovation," ZEW Discussion Papers 97-27, ZEW - Zentrum für Europäische Wirtschaftsforschung / Center for European Economic Research. [Downloadable!]
17. Adam B. Jaffe, 1999. "The U.S. Patent System in Transition: Policy Innovation and the Innovation Process," NBER Working Papers 7280, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
    Other versions:
    • Jaffe, Adam B., 2000. "The U.S. patent system in transition: policy innovation and the innovation process," Research Policy, Elsevier, vol. 29(4-5), pages 531-557, April. [Downloadable!] (restricted)
18. Lanjouw, Jean Olson, 1998. "Patent Protection in the Shadow of Infringement: Simulation Estimations of Patent Value," Review of Economic Studies, Blackwell Publishing, vol. 65(4), pages 671-710, October. [Downloadable!] (restricted)
19. Manuel Trajtenberg, 1990. "A Penny for Your Quotes: Patent Citations and the Value of Innovations," RAND Journal of Economics, The RAND Corporation, vol. 21(1), pages 172-187, Spring. [Downloadable!] (restricted)
20. David C. Mowery & Arvids A. Ziedonis, 2001. "The Geographic Reach of Market and Non-Market Channels of Technology Transfer: Comparing Citations and Licenses of University Patents," NBER Working Papers 8568, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
21. Saragossi, Sarina & van Pottelsberghe de la Potterie, Bruno, 2003. " What Patent Data Reveal about Universities: The Case of Belgium," The Journal of Technology Transfer, Springer, vol. 28(1), pages 47-51, January. [Downloadable!] (restricted)
22. Harhoff, Dietmar & Scherer, Frederic M. & Vopel, Katrin, 2003. "Citations, family size, opposition and the value of patent rights," Research Policy, Elsevier, vol. 32(8), pages 1343-1363, September. [Downloadable!] (restricted)
23. Sampat, Bhaven N. & Mowery, David C. & Ziedonis, Arvids A., 2003. "Changes in university patent quality after the Bayh-Dole act: a re-examination," International Journal of Industrial Organization, Elsevier, vol. 21(9), pages 1371-1390, November. [Downloadable!] (restricted)
24. Harhoff, Dietmar & Reitzig, Markus, 2002. "Determinants of Opposition Against EPO Patent Grants - The Case of Biotechnology and Pharmaceuticals," CEPR Discussion Papers 3645, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
    Other versions:
    • 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. [Downloadable!] (restricted)
25. Jean O. Lanjouw & Ariel Pakes & Jonathan Putnam, 1996. "How to Count Patents and Value Intellectual Property: Uses of Patent Renewal and Application Data," NBER Working Papers 5741, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)

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. van Pottelsberghe, Bruno & van Zeebroeck, Nicolas, 2007. "A Brief History of Space and Time: the Scope-Year Index as a Patent Value Indicator Based on Families and Renewals," CEPR Discussion Papers 6321, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
   Other versions:
   • Bruno Van Pottelsberghe & Nicolas van Zeebroeck, 2007. "A Brief History of Space and Time: the Scope-Year Index as a Patent Value Indicator Based on Families and Renewals," Working Papers CEB 07-019.RS, Université Libre de Bruxelles, Solvay Brussels School of Economics and Management, Centre Emile Bernheim (CEB). [Downloadable!]
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, 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!]
4. Eleftherios Sapsalis & Bruno Van Pottelsberghe, 2004. "Insight into the patenting performance of Belgian universities," Working Papers CEB 04-009.RS, Université Libre de Bruxelles, Solvay Brussels School of Economics and Management, Centre Emile Bernheim (CEB). [Downloadable!]
   Other versions:
   • Eleftherios Sapsalis & Bruno van Pottelsberghe de la Potterie, 2003. "Insight into the patenting performance of Belgian universities," Brussels Economic Review/Cahiers Economiques de Bruxelles, Editions du DULBEA, Université libre de Bruxelles, Department of Applied Economics (DULBEA), vol. 46(3), pages 37-58.
5. 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!]