Where a group of inventions is claimed in a European patent application, the requirement of unity of invention under Article 82 shall be fulfilled only when there is a technical relationship among those inventions involving one or more of the same or corresponding special technical features. The expression "special technical features" shall mean those features which define a contribution which each of the claimed inventions considered as a whole makes over the prior art.
Date retrieved: 02 November 2015
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EPC Implementing Rules
EPO Guidelines - B Search
EPO Guidelines - F The European Patent Application
EPO PCT GL - F (not assigned)
Offical Journal of the EPO
Case Law Book
Case Law Book: II Conditions to be met by an Application
Case Law with Headnote
XJ 21/09 ZustÃ¤ndigkeit der Juristischen Beschwerdekammer / NichtrÃ¼ckzahlung von weiteren RecherchengebÃ¼hren / Vorlage an die [..]