T 1845/14 vom 08.11.2018

Lack of sufficiency of disclosure arising from ambiguous parameter (all requests)

In case of an unclear parameter defined in a claim whose values required in the claim are indicated in the specification to be essential to solving the problem underlying the patent at issue, the ability of the skilled person to solve that problem by reproducing what is claimed is not a suitable criterion for assessing sufficiency of disclosure when the problem or an effect derivable from it are not explicitly or implicitly part of the definition of the claimed subject-matter (point 9.8 of the Reasons).