Google Patents provides access to United States patents from the 1790s to the present. It also includes patents from around the world that have been translated. Searchers can easily download the pdf of a patent found in the database.
Europe's network of patent databases. Search for patent applications in their original language from the European Patent Office and the World Intellectual Property Organization (WIPO). Ways to search include title, abstract, application number, and more.
The PATENTSCOPE database provides access to the international Patent Cooperation Treaty (PCT) applications in full text format on the day of publication, as well as to patent documents of participating national and regional patent offices. The information may be searched by entering keywords, names of applicants, international patent classification and many other search criteria in multiple languages.
United States Patents. The full-text of patents are available free of charge. The database can be searched using any number of fields, including keyword, title, patent number, applicant name, and assignee name.
