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Knowledge diffusion from university and public research. A comparison between US, Japan and Europe using patent citations

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Author Info
Emanuele Bacchiocchi (University of Milan, Italy.)
Fabio Montobbio (University of Insubria, Varese and CESPRI - Bocconi University, Milan, Italy.)

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Abstract

This paper estimates the process of diffusion and decay of knowledge from university, public laboratories and corporate patents in six countries and tests the differences across countries and across technological fields using data from the European Patent Office. It finds that university and public research patents are more cited relatively to companies’ patents. However these results are mainly driven by the Chemical, and Drugs & Medical fields and US universities. In Europe and Japan, where the great majority of patents from public reserach comes from national agencies, there is no evidence of a superior fertility of university and public laboratories patents vis `a vis corporate patents. The distribution of the citations lags shows that knowledge embedded in university and public research patents tends to diffuse more rapidly relatively to corporate ones in particular in US, Germany, France and Japan.

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Publisher Info
Paper provided by CESPRI, Centre for Research on Innovation and Internationalisation, Universita' Bocconi, Milano, Italy in its series CESPRI Working Papers with number 193.

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Length: pages 20
Date of creation: Dec 2006
Date of revision: Dec 2006
Handle: RePEc:cri:cespri:wp193

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Keywords: University patents Citations Spillovers Knowledge Diffusion Public Research.

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Find related papers by JEL classification:
O30 - Economic Development, Technological Change, and Growth - - Technological Change - - - General
O33 - Economic Development, Technological Change, and Growth - - Technological Change - - - Technological Change: Choices and Consequences; Diffusion Processes
O34 - Economic Development, Technological Change, and Growth - - Technological Change - - - Intellectual Property Rights

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References listed on IDEAS
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. Stefano Breschi & Francesco Lissoni, 2004. "Knowledge networks from patent data: Methodological issues and research targets," CESPRI Working Papers 150, CESPRI, Centre for Research on Innovation and Internationalisation, Universita' Bocconi, Milano, Italy, revised Jan 2004. [Downloadable!]
  2. 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. [Downloadable!] (restricted)
  3. Geuna, Aldo & Nesta, Lionel J.J., 2006. "University patenting and its effects on academic research: The emerging European evidence," Research Policy, Elsevier, vol. 35(6), pages 790-807, July. [Downloadable!] (restricted)
  4. 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.
  5. 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 Working Papers 4370, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  6. 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)
  7. 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)
  8. Stefano Breschi & Francesco Lissoni & Fabio Montobbio, 2005. "The Scientific Productivity of Academic Inventors: New Evidence From Italian Data," CESPRI Working Papers 168, CESPRI, Centre for Research on Innovation and Internationalisation, Universita' Bocconi, Milano, Italy, revised May 2005. [Downloadable!]
    Other versions:
  9. 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)
  10. Francesco Lissoni & Bulat Sanditov & Gianluca Tarasconi, 2006. "The Keins Database on Academic Inventors: Methodology and Contents," CESPRI Working Papers 181, CESPRI, Centre for Research on Innovation and Internationalisation, Universita' Bocconi, Milano, Italy, revised Sep 2006. [Downloadable!]
  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. [Downloadable!] (restricted)
    Other versions:
  12. 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)
    Other versions:
  13. Balconi, Margherita & Breschi, Stefano & Lissoni, Francesco, 2004. "Networks of inventors and the role of academia: an exploration of Italian patent data," Research Policy, Elsevier, vol. 33(1), pages 127-145, January. [Downloadable!] (restricted)
  14. Sapsalis, Eleftherios & van Pottelsberghe de la Potterie, Bruno & Navon, Ran, 2006. "Academic versus industry patenting: An in-depth analysis of what determines patent value," Research Policy, Elsevier, vol. 35(10), pages 1631-1645, December. [Downloadable!] (restricted)
  15. Schmiemann, Manfred & Durvy, Jean-Noel, 2003. " New Approaches to Technology Transfer from Publicly Funded Research," The Journal of Technology Transfer, Springer, vol. 28(1), pages 9-15, January. [Downloadable!] (restricted)
  16. Adam B. Jaffe & Manuel Trajtenberg & 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. [Downloadable!] (restricted)
  17. Fabio Montobbio & E. Bacchiocchi, 2004. "EPO vs. USPTO Citation Lags," CESPRI Working Papers 161, CESPRI, Centre for Research on Innovation and Internationalisation, Universita' Bocconi, Milano, Italy, revised Sep 2004. [Downloadable!]
Full references

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. Mario Calderini & Chiara Franzoni & Andrea Vezzulli, 2007. "The Unequal Benefits of Academic Patenting for Science and Engineering Research," CESPRI Working Papers 203, CESPRI, Centre for Research on Innovation and Internationalisation, Universita' Bocconi, Milano, Italy, revised Oct 2007. [Downloadable!]
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