Are There Enduring Patents?.

Noma, Elliot; Olivastro, Dominic

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Peer reviewed

ERIC Number: EJ324088

Record Type: Journal

Publication Date: 1985

Pages: N/A

Abstractor: N/A

ISBN: N/A

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EISSN: N/A

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Are There Enduring Patents?

Noma, Elliot; Olivastro, Dominic

Journal of the American Society for Information Science, v36 n5 p297-301 Sep 1985

A study comparing citations received by patents in given year to number received in subsequent years found that, even though influential patents remain influential, both highly and infrequently cited patents age at same rate. Distribution of patents by number of citations received is stable over time. (17 references) (EJS)

Descriptors: Citations (References), Comparative Analysis, Matrices, Models, Obsolescence, Patents, Statistical Distributions, Tables (Data)

Publication Type: Journal Articles; Reports - Research

Education Level: N/A

Audience: Researchers

Language: English

Sponsor: N/A

Authoring Institution: N/A

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Author Affiliations: N/A