Allard Chu

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Inter Partes Review: Who is a “Privy” of the Petitioner?

There is a time limit for preventing certain petitioners from initiating an IPR proceeding against a patent, and there is currently a petition for writ of mandamus to the Federal Circuit as to the scope of petitioners covered by the time bar. This issue arises because 35 U.S.C. §§ 315(b). 35 U.S.C. §§ 315(b) states that “[a]n inter partes review may not be instituted if the petition requesting the proceeding is filed more than 1 year after the date on which the petitioner, real party in interest, or privy of the petitioner is served with a complaint alleging infringement of the patent.” Unfortunately, the critical question regarding who exactly is covered by “privy of the petitioner” is not defined by the statute and is subject to great debate.