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Q64. Inventive Step in Selective invention

Q64. Inventive Step in Selective invention
 Explain how an inventive step is considered in a selective invention.

A64. In accordance with the Examination Guideline, a selective invention involves an inventive step, when it generates an advantageous effect, not disclosed in a cited reference, qualitatively different or qualitatively the same but quantitatively prominent in comparison with that of an invention with a generic concept in a cited invention, neither of the effect being foreseen by a person skilled in the art from the state of the art.