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The influence of strategic patenting on companies' patent portfolios

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  • Blind, Knut
  • Cremers, Katrin
  • Mueller, Elisabeth

Abstract

This paper analyses whether strategic motives for patenting influence the characteristics of companies' patent portfolios. We use the number of citations and oppositions to represent these characteristics. The investigation is based on survey and patent data from German companies. We find clear evidence that the companies' patenting strategies explain the characteristics of their patent portfolios. First, companies using patents to protect their technological knowledge base receive a higher number of citations for their patents. Second, the motive of offensive - but not of defensive - blocking is related to a higher incidence of oppositions, whereas companies using patents as bartering chips in collaborations receive fewer oppositions to their patents.

Suggested Citation

  • Blind, Knut & Cremers, Katrin & Mueller, Elisabeth, 2008. "The influence of strategic patenting on companies' patent portfolios," ZEW Discussion Papers 07-013 [rev.], ZEW - Leibniz Centre for European Economic Research.
    • Handle: RePEc:zbw:zewdip:07013r
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    More about this item

    Keywords

    strategic patenting; patent portfolio characteristics;

    JEL classification:

    • O34 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Intellectual Property and Intellectual Capital
    • O32 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Management of Technological Innovation and R&D

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