What is the purpose of a count in an interference proceeding?

The purpose of a count in an interference proceeding is to define the scope of the interfering subject matter between competing parties. According to MPEP 2304.02(b):

“A count defines the interfering subject matter between two or more applications or between one or more applications and one or more patents.”

The count serves as a basis for determining priority of invention and helps focus the proceedings on the specific subject matter in dispute.

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Topics: MPEP 2300 - Interference And Derivation Proceedings, MPEP 2304.02(B) - Counts And Corresponding Claims, Patent Law, Patent Procedure
Tags: Count, interference, Interfering Subject Matter