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Statistics of European patents on legal status and granting data

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  • van der Drift, J.

Abstract

Patent statistics based on the legal status of European patents and applications and search strategies employed in the EPAT-file on Telesystemes-Questel are presented. The techniques described make it possible to study competitor's activities and technological trends based on legally effective European patents and pending applications. Analyses of the granting and opposition procedures at the European Patent Office (EPO) are given.

Suggested Citation

  • van der Drift, J., 1988. "Statistics of European patents on legal status and granting data," World Patent Information, Elsevier, vol. 10(4), pages 243-249.
    • Handle: RePEc:eee:worpat:v:10:y:1988:i:4:p:243-249
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