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In 2001, WIPO launched PATENTSCOPE as an online service to provide free access to international patent documents. The database initially focused on the Patent Cooperation Treaty (PCT) applications, which are international patent applications filed under the PCT system. In 2008, it was transformed into a search system for not only published PCT ...
Wikipedia entry for Google Patents.Google Patents is a search engine from Google that indexes patents and patent applications from the United States Patent and Trademark Office.
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[ed] to have primitive search engines and in some cases rather cumbersome mechanisms to download patents."
The Lens, formerly called Patent Lens, is a free searcheable online patent and scholarly literature database, provided by Cambia, an Australia-based non-profit organization. The Lens has been hailed as the “most comprehensive scholarly literature database, that exceeds in its width and depth two leading commercial databases ( Web of Science ...
INPADOC, which stands for International Patent Documentation, [1] [notes 1] is a freely available international patent database. It is produced and maintained by the European Patent Office (EPO). INPADOC developed a patent families classification, which groups together patent applications (and issued patents) originating from the same priority ...
The bronze bust of Thomas Jefferson is at the far right. Researchers can access patent search databases within the facility. The USPTO web site provides free electronic copies of issued patents and patent applications as multiple-page TIFF (graphic) documents. The site also provides Boolean search and analysis tools. [113]
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