Mapping Technological Trajectories as Patent Citation Networks. A Study on the History of Fuel Cell Research

Verspagen, Bart (2005). Mapping Technological Trajectories as Patent Citation Networks. A Study on the History of Fuel Cell Research. UNU-MERIT Research Memoranda. UNU-MERIT.

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    Author Verspagen, Bart
    Title Mapping Technological Trajectories as Patent Citation Networks. A Study on the History of Fuel Cell Research
    Series Title UNU-MERIT Research Memoranda
    Volume/Issue No. 20
    Publication Date 2005
    Publisher UNU-MERIT
    Language eng
    Abstract Technological change is argued to be taking place along ordered and selective pat-terns, shaped jointly by technological and scientific principles, and economic and other societal factors. Historical, descriptive analysis is often used to analyze these 'trajectories'. Recently, quantitative methods have been proposed to map these tra-jectories. It is argued that such methods have, so far, not been able to illuminate the engineering side of technological trajectories. In order to fill this gap, a methodology proposed by Hummon and Doreian (1989) is used and extended to undertake a cita-tion analysis of patents in the field of fuel cells.
    Keyword Patent citations
    Technological trajectories
    History of fuel cell research
    Copyright Year 2005
    Copyright type All rights reserved
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    Created: Fri, 13 Dec 2013, 12:39:02 JST