T 0261/15 - Examples rather than end points
In this opposition appeal, the Board found that claim 1 of the Main Request, relating to a high strength pearlitic steel rail defined by several ranges of alloying elements, although overlapping with the composition of a pearlitic rail disclosed in D1, is novel. More specifically, the Board found that - whilst it is true that the Guidelines for Examination in the European Patent Office, G.VI.8, recite that the claimed sub-range is sufficiently far removed from any specific examples disclosed in the prior art and from the end-points of the known range as a condition for acknowledging novelty of a numerical selection - the limit values (end points) of a known range, although explicitly disclosed, are not to be treated in the same way as the examples. The person skilled in the art would therefore not necessarily contemplate working in the region of the end-points of the prior art range, which are normally not representative of the gist of the prior art teaching.