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Publication coverage: 1800s - present (varies by country; updated weekly)The largest public patent database on the internet, Espacenet contains more than 100 million patent documents from more than 90 countries including Canada and the U.S., plus 2 million records for non-patent literature cited in EPO search reports.
Publication coverage: 2000 - 2015Methods in Organic Synthesis was discontinued in 2015. It provided graphical abstracts of the most important current developments in the field as well as new synthetic advances, including reaction schemes. Entries are indexed by reaction, reactant and reagent.
Publication coverage: 2000 - presentSelected from dozens of key primary journals, this database alerts natural product scientists to the latest developments in the field. The abstracts include structure diagrams, trivial and taxonomic names, and physical and biological properties.
Publication coverage: 1947 - presentThis web portal, formerly known as SciTech Connect, contains more than 3 million references (445,000 full-text) to reports, articles, patents, datasets, presentations, software, and other scientific and technical information arising from research supported by the U.S. Department of Energy.