What is an interfering claim in a patent application?

An interfering claim in a patent application refers to a claim that covers the same subject matter as a claim in another application or patent by a different inventor. According to MPEP 2304.04(a), “If the applicant already has a claim to the same subject matter as a claim in the application or patent of another inventor, then there is no need to require the applicant to add a claim to have a basis for an interference.”

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Topics: MPEP 2300 - Interference And Derivation Proceedings, MPEP 2304.04(A) - Interfering Claim Already In Application, Patent Law, Patent Procedure
Tags: Interference Proceedings, Interfering Claim