esp@cenet helpfiles - IPC Classification

esp@cenet helpfiles

About the esp@cenet network. >> Using esp@cenet >> Extended Search Options >> Worldwide publications >> IPC Classification

Search field:	IPC Classification (51)
Definition:	The technical content of patent documents is classified according to the International Patent Classification (IPC).
Content:	The IPC Classification is assigned by the publishing office conform version of the IPC, which is in force at the time of the publication of the patent application. The complete IPC can be found on the web site of the World Intellectual Property Organisation (WIPO).
Syntax:	Cnn or CnnC or CnnCnn or CnnCnn/ or CnnCnn/nn
Format:	The classification is made up by a letter, denoting the IPC section, followed by a number (2 digits), denoting the IPC class. Optionally, the classification can be followed by a sequence of a letter, denoting the IPC subclass, a number (variable, 1-3 digits), denoting the IPC main group, a forward slash "/", a number (variable, 1-3 digits), denoting the IPC subgroup. Although on some documents the IPC symbol is printed with a blank after the 4th position, in esp@cenet the symbol must be entered in the search field without any blanks.
Example:	IPC Classification: IPC Classification: IPC Classification: IPC Classification: IPC Classification: IPC Classification:
Operators:	AND, NOT, OR Default Operator: AND
Further information:	The content, index and manual of the IPC are available at the WIPO.

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