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http://www.micropat.com/static/index.htm

Micropatent

MicroPatent is the world’s leading source for online patent and trademark information. Combining advanced technology with the most comprehensive, up-to-date IP information, MicroPatent delivers a complete intellectual property solution—whether it’s online searching, document delivery, patent analysis, file histories, or professional search assistance.
http://www.dialog.com/

Dialog, LLC

ProQuest a Top Innovator—Again! ProQuest ranked 65th in the 2011 InformationWeek 500, an annual listing of the nation's most innovative users of business technology. This is ProQuest's third consecutive appearance in the top 100 of the InfoWeek 500. Read more...
http://www.questel.fr/

Questel

A partir du 1er mars 2012 : Questel announced a new partnership with China National Chemical Information Center (CNCIC), the national information collection, research and service institution of China chemical industry, based in Beijing, China Le 5 septembre 2011 :