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Mapping Technological Trajectories as Patent Citation Networks. An application to Data Communication Standards

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Author Info

  • Roberto Fontana

    ()
    (University of Pavia)

  • Alessandro Nuvolari

    ()
    (Eindhoven University of Technology)

  • Bart Verspagen

    ()
    (Eindhoven University of Technology)

Abstract

We use patent citation networks to study the dynamics of technical change in Ethernet, a standard for data communication. We first consider the evolution of the broad technological system of local area networks (LANs) and we identify the most significant inventions within the specific subfield of Ethernet. Then we analyse the structure of connectivity of patent citation networks to reconstruct the main technological trajectories in this subfield. Our results suggest that these technological trajectories are characterized by the presence of a number of interconnected technological environments which cluster following an engineering logic. These clusters include the most significant patents related to 'milestones inventions' in the evolution of the LAN technology. Thus, our analysis of the structure of connectivity in patent citation networks seems appropriate to capture both the cumulativeness associated to the development of a specific technology and the significant discontinuities that punctuate the trajectory, as well as the technological interrelatedness characterising large technical systems.

(This abstract was borrowed from another version of this item.)

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Bibliographic Info

Paper provided by SPRU - Science and Technology Policy Research, University of Sussex in its series SPRU Working Paper Series with number 166.

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Length: 58 pages
Date of creation: 02 2008
Date of revision:
Handle: RePEc:sru:ssewps:166

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Keywords: Technical systems; Technological trajectories; Patents; Network analysis; Data communications;

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References

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  1. William Lehr, 1996. "Compatibility Standards And Industry Competition: Two Case Studies," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 4(2), pages 97-112.
  2. von Wartburg, Iwan & Teichert, Thorsten & Rost, Katja, 2005. "Inventive progress measured by multi-stage patent citation analysis," Research Policy, Elsevier, vol. 34(10), pages 1591-1607, December.
  3. Bart Verspagen, 2007. "Mapping Technological Trajectories As Patent Citation Networks: A Study On The History Of Fuel Cell Research," Advances in Complex Systems (ACS), World Scientific Publishing Co. Pte. Ltd., vol. 10(01), pages 93-115.
  4. Mina, A. & Ramlogan, R. & Tampubolon, G. & Metcalfe, J.S., 2007. "Mapping evolutionary trajectories: Applications to the growth and transformation of medical knowledge," Research Policy, Elsevier, vol. 36(5), pages 789-806, June.
  5. Michael L. Katz & Carl Shapiro, 1994. "Systems Competition and Network Effects," Journal of Economic Perspectives, American Economic Association, vol. 8(2), pages 93-115, Spring.
  6. Roberto Fontana & Lionel Nesta, 2006. "Product entry in a fast growing industry: the LAN switch market," Journal of Evolutionary Economics, Springer, vol. 16(1), pages 45-64, April.
  7. Roberto Fontana, 1999. "Twinning Networks: Co-Evolution and Competition of System Component Technologies in the Local Area Network Industry," SPRU Working Paper Series 31, SPRU - Science and Technology Policy Research, University of Sussex.
  8. Antonelli, Cristiano, 1995. "Localized Technological Change in the Network of Networks: The Interaction between Regulation and the Evolution of Technology in Telecommunications," Industrial and Corporate Change, Oxford University Press, vol. 4(4), pages 737-54.
  9. Thomas Grebel & Jackie Krafft & Pier-Paolo Saviotti, 2006. "On the Life Cycle of Knowledge Intensive Sectors," Revue de l'OFCE, Presses de Sciences-Po, vol. 97(5), pages 63-85.
  10. David, Paul A. & Bunn, Julie Ann, 1988. "The economics of gateway technologies and network evolution: Lessons from electricity supply history," Information Economics and Policy, Elsevier, vol. 3(2), pages 165-202.
  11. Dosi, Giovanni, 1982. "Technological paradigms and technological trajectories : A suggested interpretation of the determinants and directions of technical change," Research Policy, Elsevier, vol. 11(3), pages 147-162, June.
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Citations

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Cited by:
  1. Marianna EPICOCO (GREThA, CNRS, UMR 5113) & Vanessa OLTRA (GREThA, CNRS, UMR 5113) & Maïder SAINT JEAN (GREThA, CNRS, UMR 5113), 2012. "Mapping the scientific knowledge of the Green Chemistry community (In French)," Cahiers du GREThA 2012-10, Groupe de Recherche en Economie Théorique et Appliquée.
  2. Rudi Bekkers & Arianna Martinelli, 2010. "The interplay between standardization and technological change: A study on wireless technologies, technological trajectories, and essential patent claims," Working Papers 10-08, Eindhoven Center for Innovation Studies, revised Sep 2010.
  3. Arianna Martinelli & Önder Nomaler, 2014. "Measuring knowledge persistence: a genetic approach to patent citation networks," Journal of Evolutionary Economics, Springer, vol. 24(3), pages 623-652, July.
  4. Ramlogan, Ronnie & Consoli, Davide, 2008. "Knowledge, understanding and the dynamics of medical innovation," MPRA Paper 9112, University Library of Munich, Germany.
  5. Cristiano Antonelli & Jackie Krafft & Francesco Quatraro, 2010. "Recombinant Knowledge and Growth: The Case of ICTs," Post-Print hal-00448649, HAL.
  6. Nemet, Gregory F. & Johnson, Evan, 2012. "Do important inventions benefit from knowledge originating in other technological domains?," Research Policy, Elsevier, vol. 41(1), pages 190-200.
  7. Marianna EPICOCO (GREThA, CNRS, UMR 5113 & DSLW, University of Milan), 2012. "Knowledge patterns and sources of leadership: mapping the semiconductor miniaturization trajectory," Cahiers du GREThA 2012-09, Groupe de Recherche en Economie Théorique et Appliquée.
  8. Calvin Weng & Tugrul Daim, 2012. "Structural Differentiation and Its Implications—Core/Periphery Structure of the Technological Network," Journal of the Knowledge Economy, Springer, vol. 3(4), pages 327-342, December.
  9. Barberá-Tomás, David & Jiménez-Sáez, Fernando & Castelló-Molina, Itziar, 2011. "Mapping the importance of the real world: The validity of connectivity analysis of patent citations networks," Research Policy, Elsevier, vol. 40(3), pages 473-486, April.
  10. Martinelli, Arianna, 2012. "An emerging paradigm or just another trajectory? Understanding the nature of technological changes using engineering heuristics in the telecommunications switching industry," Research Policy, Elsevier, vol. 41(2), pages 414-429.
  11. Nemet, Gregory F., 2012. "Inter-technology knowledge spillovers for energy technologies," Energy Economics, Elsevier, vol. 34(5), pages 1259-1270.
  12. Magazzini Laura & Fabio Pammolli, 2013. "R&D, Within and Between Patent Competition in the Pharmaceutical Industry," Working Papers 3/2013, IMT Institute for Advanced Studies Lucca, revised Jul 2013.
  13. Bekkers, Rudi & Bongard, René & Nuvolari, Alessandro, 2011. "An empirical study on the determinants of essential patent claims in compatibility standards," Research Policy, Elsevier, vol. 40(7), pages 1001-1015, September.

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