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dc.contributor.authorVopel, Katrinen
dc.contributor.authorScherer, Frederic M.en
dc.contributor.authorNarin, Francisen
dc.contributor.authorHarhoff, Dietmaren
dc.date.accessioned2009-02-16T14:50:25Z-
dc.date.available2009-02-16T14:50:25Z-
dc.date.issued1997-
dc.identifier.urihttp://hdl.handle.net/10419/24249-
dc.description.abstractThrough a survey, economic value estimates were obtained on 962 inventions madein the United States and Germany and on which German patent renewal fees werepaid to full-term expiration in 1995. A search of subsequent U.S. and Germanpatents yielded a count of citations to those patents. Patents renewed to full termwere significantly more valuable than patents allowed to expire before their fullterm. The higher an invention?s economic value estimate was, the more the relevantpatent was subsequently cited.en
dc.language.isoengen
dc.publisher|aZentrum für Europäische Wirtschaftsforschung (ZEW) |cMannheimen
dc.relation.ispartofseries|aZEW Discussion Papers |x97-27en
dc.subject.jelO34en
dc.subject.jelO47en
dc.subject.ddc330en
dc.subject.keywordInnovationen
dc.subject.keywordPatenten
dc.subject.keywordCitationen
dc.subject.keywordCount data modelen
dc.subject.stwInnovationen
dc.subject.stwPatenten
dc.subject.stwImmaterielles Anlagevermögenen
dc.subject.stwPublikationsanalyseen
dc.subject.stwBewertungen
dc.subject.stwUSAen
dc.subject.stwDeutschlanden
dc.titleCitation Frequency and the Value of Patented Innovation-
dc.typeWorking Paperen
dc.identifier.ppn852456867en
dc.rightshttp://www.econstor.eu/dspace/Nutzungsbedingungenen
dc.identifier.repecRePEc:zbw:zewdip:5130en

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