Patent and Information Systems
Patent offices in various countries and international institutions active in this field provide access to their databases of patent documents free of charge. Thus, it is possible to conduct patent search in these systems, usually entirely free of charge.
|U.S. Patent and Trademark Office (USPTO)
Database of patent documents registered by the Patent and Trademark Office of the USA.
World-wide database of patent documents accessible through the European Patent Office.
Database of the German Patent and Trademark Office. Possibility to search according to the expertise of the users.
|Canadian Patents Database
National Canadian Patents Database
|Industrial Property Digital Library
Collection of documents of the Japan Patent Office accessible through the Industrial Property Digital Library.
|Industrial Property Office of the CR
Database of patent documents of the Industrial Property Office.
|The Global IP Reference Resource
Collection of databases of patent literature produced by the WIPO (World Intellectual Property Organization).
|Federal Institute of Industrial Property
The database provides access to patent documents for the territory of Russia.
Databases accessible within the Intellectual Property Australia.
|Intellectual Property Office
The system enables parallel search in a number of databases of many patent institutions.
Collection of patents accessible within services provided by the Google search engine.