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The influence of strategic patenting on companies' patent portfolios

  • Blind, Knut
  • Cremers, Katrin
  • Mueller, Elisabeth

This paper analyses whether strategic motives for patenting influence the characteristics of companies' patent portfolios. We use the number of citations and oppositions to represent these characteristics. The analysis is based on survey data from German companies, which are combined with EPO data covering applications from 1991 to 2000. We find clear evidence that the companies' patenting strategies are related to the characteristics of their patent portfolios. First, companies using patents in the traditional way to protect their technological knowledge base receive a higher number of forward citations for their patents. Second, the motive of offensive - but not of defensive - blocking is related to a higher incidence of oppositions, whereas companies using patents as bartering chips in collaborations receive fewer citations and fewer oppositions to their patents.

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File URL: http://www.sciencedirect.com/science/article/B6V77-4VGDNKX-1/2/0bf13ed2f142e777f63f2653bbd51249
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Article provided by Elsevier in its journal Research Policy.

Volume (Year): 38 (2009)
Issue (Month): 2 (March)
Pages: 428-436

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Handle: RePEc:eee:respol:v:38:y:2009:i:2:p:428-436
Contact details of provider: Web page: http://www.elsevier.com/locate/respol

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  1. Carine Peeters & Bruno Pottelsberghe de la Potterie, 2006. "Innovation strategy and the patenting behavior of firms," Journal of Evolutionary Economics, Springer, vol. 16(1), pages 109-135, April.
  2. Shapiro, Carl, 2001. "Antitrust Limits to Patent Settlements," Competition Policy Center, Working Paper Series qt87s5j911, Competition Policy Center, Institute for Business and Economic Research, UC Berkeley.
  3. 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.
  4. Hussinger, Katrin, 2005. "Is Silence Golden? Patents versus Secrecy at the Firm Level," Discussion Paper Series of SFB/TR 15 Governance and the Efficiency of Economic Systems 37, Free University of Berlin, Humboldt University of Berlin, University of Bonn, University of Mannheim, University of Munich.
  5. Stuart J. H. Graham & Bronwyn H. Hall & Dietmar Harhoff & David C. Mowery, 2002. "Post-Issue Patent "Quality Control": A Comparative Study of US Patent Re-examinations and European Patent Oppositions," NBER Working Papers 8807, National Bureau of Economic Research, Inc.
  6. Arundel, Anthony, 2001. "The relative effectiveness of patents and secrecy for appropriation," Research Policy, Elsevier, vol. 30(4), pages 611-624, April.
  7. 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, 04.
  8. Bruno Van Pottelsberghe & Eleftherios Sapsalis, 2007. "The institutional sources of knowledge and the value of academic patents," ULB Institutional Repository 2013/6195, ULB -- Universite Libre de Bruxelles.
  9. Wesley David Sine & Scott Shane & Dante Di Gregorio, 2003. "The Halo Effect and Technology Licensing: The Influence of Institutional Prestige on the Licensing of University Inventions," Management Science, INFORMS, vol. 49(4), pages 478-496, April.
  10. 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.
  11. Bronwyn H. Hall & Grid Thoma & Salvatore Torrisi, 2007. "The market value of patents and R&D: Evidence from European firms," NBER Working Papers 13426, National Bureau of Economic Research, Inc.
  12. Wesley M. Cohen & Richard R. Nelson & John P. Walsh, 2000. "Protecting Their Intellectual Assets: Appropriability Conditions and Why U.S. Manufacturing Firms Patent (or Not)," NBER Working Papers 7552, National Bureau of Economic Research, Inc.
  13. 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.
  14. Kortum, Samuel & Lerner, Josh, 1999. "What is behind the recent surge in patenting?1," Research Policy, Elsevier, vol. 28(1), pages 1-22, January.
  15. Michael Noel & Mark Schankerman, 2006. "Strategic Patenting and Software Innovation," STICERD - Economics of Industry Papers 43, Suntory and Toyota International Centres for Economics and Related Disciplines, LSE.
  16. Dietmar Harhoff & Francis Narin & F. M. Scherer & Katrin Vopel, 1999. "Citation Frequency And The Value Of Patented Inventions," The Review of Economics and Statistics, MIT Press, vol. 81(3), pages 511-515, August.
  17. Michael Noel & Mark Schankerman, 2006. "Strategic Patenting and Software Innovation," CEP Discussion Papers dp0740, Centre for Economic Performance, LSE.
  18. repec:cup:cbooks:9780521844154 is not listed on IDEAS
  19. 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.
  20. Blind, Knut & Edler, Jakob & Frietsch, Rainer & Schmoch, Ulrich, 2006. "Motives to patent: Empirical evidence from Germany," Research Policy, Elsevier, vol. 35(5), pages 655-672, June.
  21. Noel, Michael D. & Schankerman, Mark, 2006. "Strategic Patenting and Software Innovation," CEPR Discussion Papers 5701, C.E.P.R. Discussion Papers.
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