The effect of recycling on a patent citation network

Lesley Dunlop and Charles Oppeinheim

World Patent Information, 1980, vol. 2, issue 3, 100-102

Abstract: This paper describes the results obtained from the creation of a patent cittation network on X-ray tomography. Such networks have up to now been created by noting the patents and journal articles cited in a given starting patent. In this experiment, Science Citation Index was used to 'recycle' the network by identifying further journal articles. This recycling technique added some new references to the network, but did not fundamentally alter the characteristics of the network. It is concluded that whilst a reliable patent citation network can be created by the simple techniques used up to now, use of Science Citation Index makes a more complete network.

Date: 1980
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