Can new arguments be presented during an oral hearing?

Generally, new arguments cannot be presented during an oral hearing. Participants are limited to evidence and arguments previously considered by the primary examiner and presented in the briefs. However, there is an exception for new arguments based on recent relevant decisions. MPEP 2680 states: “At the oral hearing, each appellant and respondent may only rely…

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How should an examiner address new arguments or evidence in an examiner’s answer?

In an inter partes reexamination proceeding, examiners are not permitted to introduce new grounds of rejection or new findings of patentability in an examiner’s answer. According to MPEP 2677, the examiner’s answer must include an explicit statement that: “It does not contain any new ground of rejection, and it does not contain any new finding…

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