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.

http://www.google.com/patents

PageRank: 8/10

(Clicks: 1563; Listing added: Feb 7, 2010)

Free Patents Online

Complete Patent Searching Database and Patent Data Analytics Services.

http://www.freepatentsonline.com/

PageRank: 8/10

(Clicks: 1545; Listing added: Feb 7, 2010)

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.

https://public.resource.org/

PageRank: 7/10

(Clicks: 104; Listing added: Mar 20, 2012)

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