IndicationsIndication, auxiliary criteriaauxiliary criterion, auxiliary considerations or evidentiary signsevidentiary sign can be used to substantiate the obviousness or non-obviousness of inventions. However, evidentiary signs cannot replace the evaluative judgmentjudgment of an examiner at the patent officepatent office or a judge involved in the case. Rather, they serve as decision-making aidsdecision-making aid.