Mapping Technological Trajectories as Patent Citation Networks. An application to Data Communication Standards
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.)
|Date of creation:||02 2008|
|Contact details of provider:|| Postal: Jubilee Building G08, Falmer, Brighton, BN1 9SL|
Phone: +44 (0)1273 686758
Fax: +44 (0)1273 685865
Web page: http://www.sussex.ac.uk/spru
More information through EDIRC
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.:
- Roberto Fontana & Lionel Nesta, 2004.
"Product entry in a fast growing industry: the LAN switch market,"
SPRU Working Paper Series
126, SPRU - Science and Technology Policy Research, University of Sussex.
- 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.
- 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 737-754.
- 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.
- Verspagen,Bart, 2005.
"Mapping Technological Trajectories as Patent Citation Networks. A Study on the History of Fuel Cell Research,"
019, Maastricht University, Maastricht Economic Research Institute on Innovation and Technology (MERIT).
- 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.
- Verspagen, B., 2005. "Mapping Technological Trajectories as Patent Citation Networks. A Study on the History of Fuel Cell Research," Working Papers 05.11, Eindhoven Center for Innovation Studies.
- 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.
- Dosi, Giovanni, 1993.
"Technological paradigms and technological trajectories : A suggested interpretation of the determinants and directions of technical change,"
Elsevier, vol. 22(2), pages 102-103, April.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
When requesting a correction, please mention this item's handle: RePEc:sru:ssewps:166. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Russell Eke)
If references are entirely missing, you can add them using this form.