What types of persons typically file ex parte reexamination requests?

MPEP 2212 provides a non-exhaustive list of persons who are likely to use the ex parte reexamination process under 35 U.S.C. 302:

  • Patentees
  • Licensees
  • Potential licensees
  • Attorneys without identification of their real client in interest
  • Infringers
  • Potential exporters
  • Patent litigants
  • Interference applicants
  • International Trade Commission respondents

This diverse list reflects the various stakeholders in the patent system who might have an interest in challenging or clarifying the validity of a patent through the ex parte reexamination process.

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Topics: MPEP 2200 - Citation Of Prior Art And Ex Parte Reexamination Of Patents, MPEP 2212 - Persons Who May File A Request For Ex Parte Reexamination Under 35 U.S.C. 302, Patent Law, Patent Procedure
Tags: ex parte reexamination, patent law, Patent Stakeholders, USPTO