What rights does a third party requester have regarding new findings of patentability in inter partes reexamination?

In inter partes reexamination, a third party requester’s rights to comment on new findings of patentability are limited until the appeal stage, unless the patent owner responds to the finding. According to MPEP 2673.01: “The third party requester has no right to comment on and address a finding of patentability made during the reexamination proceeding…

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When is reopening prosecution mandatory after Action Closing Prosecution (ACP) in inter partes reexamination?

Reopening prosecution is mandatory when the examiner decides to modify their position after receiving a submission from the patent owner pursuant to 37 CFR 1.951(a) and (b). This is necessary to give the patent owner an opportunity to address any changes adverse to their position. According to MPEP 2673.01: “The examiner should reopen prosecution where…

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Why can’t examiners use interviews or examiner’s amendments to resolve minor issues after ACP in inter partes reexamination?

In inter partes reexamination, examiners cannot use interviews or examiner’s amendments to resolve minor issues after Action Closing Prosecution (ACP) due to the presence of the third party requester and procedural restrictions. MPEP 2673.01 explains: “The examiner cannot telephone the owner to obtain the minor change(s) and then issue a RAN because interviews are not…

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How does reopening prosecution after ACP affect patent owner’s amendment rights?

Reopening prosecution after Action Closing Prosecution (ACP) can significantly affect a patent owner’s amendment rights. If prosecution is reopened at the ACP stage, the patent owner’s ability to amend claims is limited. MPEP 2673.01 states: “If prosecution were reopened at the ACP stage, the patent owner loses rights as to amending the claims in response…

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What are the circumstances for discretionary reopening of prosecution after ACP?

Examiners are encouraged to be liberal in reopening prosecution after Action Closing Prosecution (ACP) when the equities of the situation make it appropriate. This is because patent owners cannot continue the proceeding through other means such as refiling or requesting continued examination. MPEP 2673.01 provides an example: “Patent owner might submit an amendment after the…

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