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1. A proper application of the so-called "problem-solution-
approach" requires the avoidance of formulating artificial and
unrealistic technical problems (following T 0495/91; No. 3.3 of
the Reasons).
2. All embodiments falling within a process claim have to meet
the requirements of patentability set out in Articles 52 to 57
EPC (No. 4.2 of the Reasons).
3. To be relevant, it is sufficient for experiments, which aim
at establishing that the promised result cannot be obtained over
the whole range of a claim that they are carried out according
to the Claim and with the normal experience of the man skilled
in the art (Nos.4.2 and 4.3 of the Reasons).
4. An experiment which was not expertly carried out is not
credible and sufficient evidence that a claim comprises
embodiments which do not solve the technical problem (No. 4.5 of
the Reasons).
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