When can a patent owner propose amendments during the reexamination process?

A patent owner has multiple opportunities to propose amendments during the reexamination process. According to MPEP 2221, amendments can be proposed:

The MPEP states: “Amendments may also be proposed by patent owners in a statement under 37 CFR 1.530(b) and (c) or during the actual ex parte reexamination prosecution (37 CFR 1.550(b)).” For more detailed information on amendments during reexamination, refer to MPEP § 2234 and MPEP § 2250.

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Topics: MPEP 2200 - Citation Of Prior Art And Ex Parte Reexamination Of Patents, MPEP 2221 - Amendments Included In Request Filed Under 35 U.S.C. 302 By Patent Owner, Patent Law, Patent Procedure
Tags: ex parte reexamination, patent amendments, Patent Owner Rights, Reexamination Process