T 1218/14 - No accidental anticipation; relevant for inventive step?
Does the finding that (a disclosure in) a prior art document D1 does not qualify as an accidental anticipation (thus not allowing the use of an undisclosed disclaimer) because it does not fulfill the criterion laid down in G 1/03 that it is so unrelated to and remote from the claimed invention that the skilled person would never have taken it into consideration when making the invention, imply that it is automatically relevant for inventive step? Or, turned around, if it is found that the claimed subject matter is inventive in view of D1, does this mean that D1 is in fact irrelevant for inventive step, such that the criterion in G 1/03 is met and that D1 is an accidental anticipation after all?
Consequently, if this criterion is met, it follows that said disclosure is completely irrelevant for assessing inventive step. However, not meeting said criterion does not necessarily imply the opposite, namely that the disclosure in question will contribute to a finding that inventive step is lacking.
Accordingly, in the present case, as D1 was considered to deal with a side aspect of the claimed subject matter, the patentee was not able to maintain his broader claims by disclaiming a relevant disclosure of D1; the subject matter of duly limited claims was however deemed inventive in view of D1 as secondary document.