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dc.contributor.authorBlind, Knuten_US
dc.contributor.authorCremers, Katrinen_US
dc.contributor.authorMueller, Elisabethen_US
dc.date.accessioned2009-02-16T14:57:32Z-
dc.date.available2009-02-16T14:57:32Z-
dc.date.issued2007en_US
dc.identifier.urihttp://hdl.handle.net/10419/24565-
dc.description.abstractThis 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.en_US
dc.language.isoengen_US
dc.publisherZentrum für Europäische Wirtschaftsforschung (ZEW) Mannheim-
dc.relation.ispartofseriesZEW Discussion Papers 07-013en_US
dc.relation.hasversionhttp://hdl.handle.net/10419/28615-
dc.subject.jelO32en_US
dc.subject.jelO34en_US
dc.subject.ddc330en_US
dc.subject.keywordstrategic patentingen_US
dc.subject.keywordpatent portfolio characteristicsen_US
dc.titleThe Influence of Strategic Patenting on Companies' Patent Portfoliosen_US
dc.typeWorking Paperen_US
dc.identifier.ppn527584665en_US
dc.rightshttp://www.econstor.eu/dspace/Nutzungsbedingungen-
dc.identifier.repecRePEc:zbw:zewdip:5501-
Appears in Collections:ZEW Discussion Papers
Publikationen von Forscherinnen und Forschern des ZEW

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