SciDev.Net

The EPO administers the 1973 European Patent Convention, which currently has 20 member states. The site contains a document database which includes patent applications to the EPO and the World Intellectual Property Organisation in their original languages, as well as the abstracts and titles of 30 million other applications worldwide (in English).

The USPTO website contains very detailed and up-to-date information on the US patent and trademark systems. It also contains a patent database allowing for searches for all patents issued since 1790. Full texts of all patents issued since 1976 can also be downloaded.