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Google Scholar
*Best Bet for Subject(Open Access) Searches across a wide range of scholarly literature from academic publishers, professional societies, university repositories, and other scholarly websites.
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Best Bets for Patents and Trademarks
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IEEE Xplore
*Best Bet for SubjectLiterature in electrical engineering, electronics, computer science, information science, materials science, physical sciences, and biomedical engineering.
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PATFT: Issued Patents / AppFT: Patent Applications
*Best Bet for Subject(Open Access) U.S. patents (including utility, design, reissue, plant patents, and SIR documents) from 1790 to present, plus U.S. published patent applications from 2001 to present.
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SciFinder
*Best Bet for SubjectIndexes journal articles, conference proceedings, and technical reports in chemistry and includes a database of chemical substances and reactions. Registration required.
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Trademark Electronic Search System (TESS)
*Best Bet for Subject(Open Access) The United States Patent and Trademark Office (USPTO)’s database of registered trademarks and prior pending applications. Also includes available information on inactive applications and registrations.
About Trademark Electronic Search System (TESS)