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- Derwent_World_Patents_Index abstract "The Derwent World Patents Index (DWPI) is a database containing patent applications and grants from 44 of the world's patent issuing authorities.Compiled in English by editorial staff, the database provides a short abstract detailing the nature and use of the invention described in a patent and is indexed into alphanumeric technology categories to allow retrieval of relevant patent documents by users.Each record within the database defines a patent family, the grouping of patent documentation recorded at the various patent offices as protection of an invention is sought around the world. Each patent family is grouped around a Basic patent, which is usually the first published example of the invention. All subsequent filings are referred back to the Basic patent, and are referred to as Equivalent patents. On this basis, the database has some 20 million \"inventions\", corresponding to tens of millions of patents, with almost a million new inventions added each year. From 2008, the number format of the Basic patent identifier (the Accession number) changed, to allow up to 3.6 million records per year to be added, as the previous format only allowed a maximum of 1 million new records a year. This is due to the steady increase in unique patents filed each year.".
- Derwent_World_Patents_Index wikiPageExternalLink derwent-world-patents-index.html.
- Derwent_World_Patents_Index wikiPageExternalLink wpindex.html.
- Derwent_World_Patents_Index wikiPageID "12795362".
- Derwent_World_Patents_Index wikiPageLength "3678".
- Derwent_World_Patents_Index wikiPageOutDegree "7".
- Derwent_World_Patents_Index wikiPageRevisionID "681531668".
- Derwent_World_Patents_Index wikiPageWikiLink Category:Patent_search_services.
- Derwent_World_Patents_Index wikiPageWikiLink Category:Thomson_Reuters.
- Derwent_World_Patents_Index wikiPageWikiLink Category:Thomson_family.
- Derwent_World_Patents_Index wikiPageWikiLink Patent.
- Derwent_World_Patents_Index wikiPageWikiLink Patent_classification.
- Derwent_World_Patents_Index wikiPageWikiLink Patent_family.
- Derwent_World_Patents_Index wikiPageWikiLink Thomson_Reuters.
- Derwent_World_Patents_Index wikiPageWikiLinkText "Derwent World Patents Index".
- Derwent_World_Patents_Index wikiPageWikiLinkText "Derwent classification system".
- Derwent_World_Patents_Index wikiPageUsesTemplate Template:One_source.
- Derwent_World_Patents_Index wikiPageUsesTemplate Template:Reflist.
- Derwent_World_Patents_Index wikiPageUsesTemplate Template:Thomson_Reuters.
- Derwent_World_Patents_Index subject Category:Patent_search_services.
- Derwent_World_Patents_Index subject Category:Thomson_Reuters.
- Derwent_World_Patents_Index subject Category:Thomson_family.
- Derwent_World_Patents_Index hypernym Database.
- Derwent_World_Patents_Index type BiologicalDatabase.
- Derwent_World_Patents_Index type Company.
- Derwent_World_Patents_Index type Company.
- Derwent_World_Patents_Index type Service.
- Derwent_World_Patents_Index comment "The Derwent World Patents Index (DWPI) is a database containing patent applications and grants from 44 of the world's patent issuing authorities.Compiled in English by editorial staff, the database provides a short abstract detailing the nature and use of the invention described in a patent and is indexed into alphanumeric technology categories to allow retrieval of relevant patent documents by users.Each record within the database defines a patent family, the grouping of patent documentation recorded at the various patent offices as protection of an invention is sought around the world. ".
- Derwent_World_Patents_Index label "Derwent World Patents Index".
- Derwent_World_Patents_Index sameAs Q1200408.
- Derwent_World_Patents_Index sameAs Derwent_World_Patent_Index.
- Derwent_World_Patents_Index sameAs m.02x5820.
- Derwent_World_Patents_Index sameAs Q1200408.
- Derwent_World_Patents_Index wasDerivedFrom Derwent_World_Patents_Index?oldid=681531668.
- Derwent_World_Patents_Index isPrimaryTopicOf Derwent_World_Patents_Index.