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Espacenet (formerly often written as ''esp@cenet'')〔''esp@cenet'' is a trademark of the European Patent Organisation (see community trade marks No: 001123876, 000881896, 000881813 on (''CTM-ONLINE – Trade mark consultation service – Basic'' )).〕〔(The "@" in esp@cenet – an old friend retires ), Patent Information News issue 1/2011, March 2011, p. 5.〕 is a free online service for searching patents and patent applications. Espacenet was developed by the European Patent Office (EPO) together with the member states of the European Patent Organisation. Most member states have an Espacenet service in their national language, and access to the EPO's worldwide database, most of which is in English. In 2015, the Espacenet worldwide service claimed to have records on more than 90 million patent publications. == History == By launching Espacenet in 1998, the EPO is said to have "revolutionized public access to international patent information, releasing patent data from its paper prisons and changing forever how patents are disseminated, organized, searched, and retrieved."〔Michael J. White, ("''Espacenet'' Europe's Network of Patent Databases" ), Issues in Science & Technology Librarianship (), Number 47, Summer 2006.〕 In 2004, i.e. in the early years of Espacenet, Nancy Lambert considered that, although free, Espacenet, like the United States Patent and Trademark Office (USPTO) database of US patents, "still tend() to have primitive search engines and in some cases rather cumbersome mechanisms to download patents."〔Lambert, N. (2004). ''(Internet patent information in the 21st century: A comparison of Delphion, Micropatent, and QPAT )'', 2004 International Chemical Information Conference & Exhibition, Annecy, France, 17–20 October 2004, pp 1–2.〕 She reported it as being deliberate, on the part of the USPTO and EPO, "who have said they do not wish to compete unfairly with commercial vendors".〔 In 2009, Espacenet offered the so-called SmartSearch which allows a query to be composed using a subset of Contextual Query Language (CQL) and in early 2011, the site was completely redesigned with a new look and feel.〔(Patentinfo News issue 4 2010 )〕 In 2012, the EPO launched "Patent Translate", a free online automatic translation service for patents. Created in partnership with Google, the translation engine was "specifically built to handle complex and technical patent vocabulary", using "millions of official, human-translated patent documents" to train the translation engine. It covers translations between English and 31 other languages. According to the ''Patent Information News magazine published by the EPO, a 2013 independent study compared Espacenet with DepatisNet, Freepatentsonline, Google Patent and the public search facility at the USPTO. In that study, Espacenet reportedly obtained the highest score for both data coverage and customer support, and the best overall aggregated score. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Espacenet」の詳細全文を読む スポンサード リンク
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