Working paper Open Access

Temporal and spatial relations between patents and scientific journal articles: the case of nanotechnologies

Finardi Ugo

ABSTRACT: Patent citations have been widely used in order to study intertechnology and science-technology relations. The present work aims at:
i) exploring time relations and distance between technical/innovative activities and scientific knowledge, using journal articles citations in patents as a proxy;
ii) exploring the origin of the knowledge cited in patents.
The study is performed on a field particularly relevant both on the scientific and technological side, that of nanosciences and nanotechnologies. In parallel a field less on the edge of research (polymers) is studied in order to compare results and shed better light on what is happening in nanotech. Studied items show a common behaviour and a higher rate of citations and a shorter time lag between citing patents and cited articles for nanotechnologies rather than for polymers. Knowledge cited in patents shows in many cases a common origin with that of citing documents. Conclusions on these behaviours are drawn.

JEL-CODES: L6, O31, O33
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