esp@cenet - European Patent Office Database

"Over 30.5 million documents including the most recent 24 months of publications from the European Patent Office,recent 24 months of PCT-publications from World Intellectual Property Organization (WIPO), the EPODOC database for"worldwide documents" where coverage varies by country (withUS Patents from 1836 to present), or Japanese Documents -PAJ (Patent Abstracts of Japan) bibliographic database since 1976."