Report:DialogClassic and Classic Web/Data Coverage/Patent Coverage/Citation Coverage
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Citation Coverage
Citation coverage within Dialog is dependent upon the particular data file being accessed. One of the most prominent files for accessing citation data on Dialog is The Derwent Patents Citation Index. The Derwent Patents Citation Index (File 342) contains citation data from a variety of authorities.
Citation Coverage in Derwent Patents Citation Index (File 342) United States (US) citations: 1973+; European Patent Office (EP), Patent Cooperation Treaty(WO/PCT) citations: 1978+; United Kingdom (GB), Germany (DE),Japan(JP) citations: May 1994+; Belgium (BE),France (FR),Netherlands (NL) citations: May 1994-May 1997, March 2007+; Spain (ES) citations: March 2007+
Citation data is also available from the INPADOC Family and Legal Status file (file 345).
