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Patents

Patent Databases and Search Engines. Inventions, Ideas and Patent Recopilations.

Google Patents

Read and download millions of patents and patent applications using Google Patent Search.
Feb 7, 2010 Clicks: 1942 Pagerank: 8

Free Patents Online

Complete Patent Searching Database and Patent Data Analytics Services.
Feb 7, 2010 Clicks: 1926 Pagerank: 8

Public Resource. Home of the Seal of Approval.

Home of the Seal of Approval. Free access to primary legal materials of the United States, video from the United States House of Representatives and data from the U.S. Patent and Trademark Office.
Mar 20, 2012 Clicks: 485 Pagerank: 7

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