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dc.contributor.authorBlind, Knuten
dc.contributor.authorCremers, Katrinen
dc.contributor.authorMueller, Elisabethen
dc.date.accessioned2009-10-08-
dc.date.accessioned2009-11-30T15:47:45Z-
dc.date.available2009-11-30T15:47:45Z-
dc.date.issued2008-
dc.identifier.urihttp://hdl.handle.net/10419/28615-
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
dc.language.isoengen
dc.publisher|aZentrum für Europäische Wirtschaftsforschung (ZEW) |cMannheimen
dc.relation.ispartofseries|aZEW Discussion Papers |x07-013 [rev.]en
dc.relation.isversionofhttp://hdl.handle.net/10419/24565en
dc.subject.jelO34en
dc.subject.jelO32en
dc.subject.ddc330en
dc.subject.keywordstrategic patentingen
dc.subject.keywordpatent portfolio characteristicsen
dc.subject.stwPatenten
dc.subject.stwWettbewerbsstrategieen
dc.subject.stwPortfolio-Managementen
dc.subject.stwWettbewerbsbeschränkungen
dc.subject.stwPublikationsanalyseen
dc.subject.stwSchätzungen
dc.subject.stwDeutschlanden
dc.titleThe influence of strategic patenting on companies' patent portfolios-
dc.type|aWorking Paperen
dc.identifier.ppn611335573en
dc.rightshttp://www.econstor.eu/dspace/Nutzungsbedingungenen
dc.identifier.repecRePEc:zbw:zewdip:07013ren

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