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Time distribution of patent information

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Abandonement rates of patents in five European countries are studied. The time distribution of British patents can be described by a truncated Gauss' distribution, of Belgian patents by a Poisson's distribution. Appropriate models derived on the base of the octogonal and cubical linear vector space norms are discussed.

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Kunz, M. Time distribution of patent information. Scientometrics 1, 275–282 (1979).

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