United States Patent and Trademark Office offers access to: full-text patent since 1976 DB, patent abstracts since 1976 DB and trademarks DB. Search is possible by document text and bibliographic data and also facsimile copies of pages and output documents could be viewed in graphics format.
Japanese Patent Office offers access to patent abstracts since 1993 DB (PAJ) (PN 05000001-11299300) in English and Trademarks DB in English. Searchable by bibliographic data and abstracts text.
European Patent Office and European Patent Organization (EPO-espacenet)
offer patent documents search of: European Patent Organization (EPO), World Intellectual Property Organization (WIPO), Japan, Austria, Belgium, Cyprus, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Liechtenstein, Luxemburg, Monaco, Netherlands, Portugal, Spain, Sweden, Switzerland, United Kingdom.
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World Intellectual Property Organization (WIPO)
provides access to patent documents collections of: Japan, Canada, USA, European Patent Organization (EPO), France, India*, China*, Latin America* and PCT claims. Also DBs of international trademarks, industrial designs* and DB of patent associated literature (JOPAL) are accessible. (* - limited access).
The IBM Intellectual property Network (IPN) provides free access to DB containing documents of USA, Japan, European Patent Organization (EPO), World Intellectual Property Organization (WIPO). Chargeable source documents purchase and delivery.
The Questel-orbit commercial information retrieval system offers access to 37 patent DBs, 19 trademarks DBs and 25 scientific DBs.
Derwentcompany is the worldwide leader in creating of patent and scientific DBs. The WPI (World Patent index) DB contains documents in pharmaceutics since 1963, agriculture and veterinary since 1965, pesticides and plastics since 1966, chemistry since 1970 and all other industrial fields since 1974. Patents and claims from 40 countries are present in the DB.
Chemical Abstracts Service (CAS)
is the worldwide leader in chemical DB creating. The Chemical Abstracts (CA) & Registry DB contains 15 millions of documents and more than 22 millions of chemical compounds.
