Verspagen, B (Verspagen, Bart) Mapping technological trajectories as patent citation networks: A study on the history of fuel cell research ADVANCES IN COMPLEX SYSTEMS, 10 (1): 93-115 MAR 2007

[Eugene Garfield]

E-mail Address: b.verspagen at tm.tue.nl 

Author(s): Verspagen, B (Verspagen, Bart)
 
Title: Mapping technological trajectories as patent citation networks: A 
study on the history of fuel cell research 

Source: ADVANCES IN COMPLEX SYSTEMS, 10 (1): 93-115 MAR 2007 

Language: English 

Document Type: Article 

Author Keywords: patent citations; technological trajectories; history of 
fuel cell research 

Keywords Plus: INDICATORS 

Abstract: Technological change is argued to be taking place along ordered 
and selective patterns, 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 
trajectories. 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 citation analysis of patents in the field 
of fuel cells. 

Addresses: Eindhoven Univ Technol, Eindhoven Ctr Innovat Studies Ecis, NL-
5600 MB Eindhoven, Netherlands 

Reprint Address: Verspagen, B, Eindhoven Univ Technol, Eindhoven Ctr 
Innovat Studies Ecis, POB 513, NL-5600 MB Eindhoven, Netherlands. 

E-mail Address: b.verspagen at tm.tue.nl 

Cited Reference Count: 20 

Times Cited: 0 

Publisher: WORLD SCIENTIFIC PUBL CO PTE LTD 

Publisher Address: 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE 

ISSN: 0219-5259 

29-char Source Abbrev.: ADV COMPLEX SYST 

ISO Source Abbrev.: Adv. Complex Syst. 

Source Item Page Count: 23 

Subject Category: Mathematics, Interdisciplinary Applications; 
Multidisciplinary Sciences 

ISI Document Delivery No.: 229RT 

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