3.5 Contribution to the known art 

When analysing the application, the search division concentrates on trying to understand what technical contribution the invention defined in the claims makes to the known art. This should normally be sufficiently clear from the application as filed. If it is not, the search division will raise an objection in the search opinion (see F‑II, 4.5), but only if it is convinced it is necessary, because it might lead the applicant to add subject-matter in breach of Art. 123(2) (see H‑IV, 2 and H‑V).