STUDIES ON PATENT CITATION NETWORKS
- 1 January 1978
- journal article
- review article
- Published by Emerald Publishing in Journal of Documentation
- Vol. 34 (1) , 12-20
- https://doi.org/10.1108/eb026650
Abstract
Work is described on patent citation networks, a novel technique for displaying the history of technological subjects and their key turning points. The method accurately identifies the key patents in a subject field, and if a subject docs not have a definite starting point, this is reflected in the patent network. The networks are less satisfactory if the key patent took a long time to appear in print. Subjects studied were: semi‐synthetic penicillins, tobacco substitutes, electrophotography, Ziegler‐Natta catalysis, and hovercraft. Possible uses of the technique are examined.Keywords
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