Although the examiner must bear in mind all the requirements of the EPC, the requirements which are most likely to require attention in the majority of cases are, in particular: sufficiency of disclosure (see C-II, 4); clarity and support in the description, especially of the independent claims (see C-III, 4 and C-III, 6); novelty (see C-IV, 5); and inventive step (see C-IV, 9).