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1	United States Patent and Trademark Office Home Page This is the only official Web site of the United States Patent and Trademark Office, an Agency of the U. S. Department of Commerce www.uspto.gov - Get Site Info
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7	European Patent Office The official website of the European Patent Office, the patent granting authority for Europe. Consult the European Patent Convention and other legal texts, learn about the patent application process, find patent documents. www.epo.org - Get Site Info
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9	WIPO - World Intellectual Property Organization WIPO, The World Intellectual Property Organization (WIPO) homepage, entry point for information about industrial property and copyright. www.wipo.int - Get Site Info
10	PATENTSCOPE® Search International Patent Applications - Structured Search This page provides an advanced search interface to the PCT (Patent) Database. www.wipo.int/pctdb/en/ - Get Site Info

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