What is the purpose of a claim chart in patent interference proceedings?

A claim chart in patent interference proceedings serves as a crucial tool for comparing and analyzing the claims of the parties involved. According to MPEP 2304.02(b), when suggesting an interference, the applicant must:

“For each count, provide a claim chart comparing at least one claim of each party corresponding to the count and show why the claims interfere within the meaning of § 41.203(a).”

The purpose of the claim chart is to:

  • Visually represent the correspondence between claims and counts
  • Facilitate the comparison of claims from different parties
  • Demonstrate how the claims interfere with each other
  • Aid the examiner in verifying that the formal requirements for suggesting an interference are met

By providing a clear, side-by-side comparison, the claim chart helps in identifying the interfering subject matter and supports the argument for declaring an interference.

To learn more:

Topics: MPEP 2300 - Interference And Derivation Proceedings, MPEP 2304.02(B) - Counts And Corresponding Claims, Patent Law, Patent Procedure
Tags: Claim Chart, Counts, Interfering Claims, Patent Interference