Abstract
Notorious knowledge is a concept defined by the Boards of Appeal of the European Patent Office which may be relevant during the assessment of the inventive step of a claim, namely to establish whether a specific technical feature is known in the state of the art or not.Over the years, the Boards of Appeal have defined that notorious knowledge must be undisputably part of common general knowledge and must be such that technical detail is not relevant. Given these conditions, there is no serious procedural violation in refusing without any documentary evidence a claim, which only comprises features which are either non-technical or technical but notorious.
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