Federal Circuit Clarifies Burden of Proof on Challenges to Identification of Real Parties-in-Interest in IPR Proceedings

Sep 12, 2018

Reading Time : 2 min

In 2012, Patent Owner Worlds, Inc. had asserted several U.S. patents related to computer-generated avatar displays against Activision Publishing, Inc. (“Activision”), a company that develops and distributes video games. Patent Owner informed Activision that it planned to add a game developed by Petitioner (an independent developer) as an accused product. Approximately six months later (more than a year after suit was filed), Petitioner, who was not a party to the litigation, filed six IPR petitions challenging Patent Owner’s patents.

During the IPR proceedings, Patent Owner located an agreement between Activision and Petitioner that suggested that Activision required Petitioner to take certain actions with respect to intellectual property (the “Agreement”). Based on the Agreement, Patent Owner sought discovery about the relationship between Activision and Petitioner in support of its argument that Petitioner should have named Activision as an RPI. According to Patent Owner, Petitioner’s IPRs were time barred because: (1) the Agreement suggested that Petitioner was acting at the behest of Activision by filing the IPR petitions, (2) Activision was actually an RPI, and (3) the petition was filed more than a year after Patent Owner had sued Activision. The Board rejected Patent Owner’s arguments, concluding that Patent Owner had not demonstrated that Activision was an unnamed RPI. Patent Owner appealed the Board’s Final Written Decisions, arguing that the Board incorrectly placed the burden of persuasion on Patent Owner to show the petitions were time barred.

The Federal Circuit first explained that a petitioner always bears the ultimate burden of persuasion to show that the petition is not time barred. The petitioner is the party requesting agency action, and the petitioner has better access to the evidence related to identification of RPIs. A petitioner meets its initial burden by identifying the RPIs in the petition. This does not create a presumption that the RPIs are correctly named, but does require a patent owner who challenges the RPI designation to present some evidence that a particular third party should have been named as an RPI. Here, the Federal Circuit was concerned that the Board had shifted the ultimate burden to the Patent Owner. The court was also concerned that the Board had relied only on attorney argument from Petitioner stating that Activision was not an RPI, even though Patent Owner had cited actual evidence (the Agreement). The Federal Circuit remanded for further consideration of the RPI issue in light of its concerns. The court also instructed the Board to consider, in the first instance, whether there was an issue of collateral estoppel based on three related IPRs that Patent Owner had not appealed.

Worlds Inc. v. Bungie, Inc., Nos. 2017-1481, 2017-1546, 2017-1583 (Fed. Cir. Sept. 7, 2018)

Practice Tip: When an RPI dispute arises, Petitioners should submit, where possible, actual evidence in support of the initial RPI disclosure. This is especially true when Patent Owner comes forward with any evidence that the entities Petitioner identified are not correct.

Share This Insight

Previous Entries

IP Newsflash

August 11, 2025

In considering a motion to dismiss infringement claims for two related patents, the District of Massachusetts recently held that pre-suit knowledge of a “parent” patent, without more, is insufficient to establish pre-suit knowledge of the “child” patent for purposes of indirect and willful infringement.

...

Read More

IP Newsflash

August 8, 2025

Following a jury verdict finding trade secret misappropriation, the District Court for the District of Massachusetts granted-in-part a plaintiff’s motion for a permanent injunction to prohibit defendants from using plaintiff’s trade secrets. The district court further required defendants to reassign to plaintiff patents and patent applications that disclosed or were derived from plaintiff’s trade secrets as part of its equitable relief.

...

Read More

IP Newsflash

August 6, 2025

In ruling on a recent motion to strike, a judge in the Eastern District of Texas permitted a damages expert to rely on a damages theory based on defendant’s “avoided costs,” holding that this theory did not run afoul of the “entire market value rule.”

...

Read More

IP Newsflash

August 5, 2025

The Federal Circuit recently vacated a decision by the Patent Trial and Appeal Board after concluding that the board’s analysis of licensing evidence offered as a secondary consideration of nonobviousness constituted legal error and was not supported by substantial evidence. According to the court, the board applied a more exacting and improperly heightened nexus standard than is required by law for license evidence.

...

Read More

IP Newsflash

August 5, 2025

A Northern District of California judge recently granted a motion to reconsider his summary judgment ruling that defendant was barred from raising certain “device art” due to IPR estoppel under 35 U.S.C. § 315(e)(2). In the original ruling, the judge adopted the broader rule that IPR estoppel applies to device art that is “materially identical” to patents or printed publications that petitioners raised, or could have raised, in an IPR. Following that ruling, however, the Federal Circuit issued its Ingenico decision adopting the narrower view that IPR estoppel applies only to “grounds” based on patents and printed publications and not to device-based grounds. Citing Ingenico as a “change of law,” defendant moved for reconsideration of the court’s ruling, and the court granted the motion.

...

Read More

IP Newsflash

August 5, 2025

In a recent decision designated as Informative, the USPTO Director determined that the Patent Trial and Appeal Board abused its discretion by instituting two inter partes review proceedings challenging the same patent, based on petitions advancing different constructions of the same claim term. The Director expressed concerns that permitting multiple petitions based on alternative claim constructions effectively circumvents word count limitations, strains board resources, and undermines procedural efficiency.

...

Read More

IP Newsflash

July 25, 2025

Earlier this year, the Federal Circuit’s decision in Qualcomm Inc. v. Apple Inc. (Qualcomm II) raised questions about the extent to which petitioners can rely on applicant admitted prior art (“AAPA”) in inter partes review proceedings.  The Federal Circuit’s recent decision in Shockwave Medical, Inc. v. Cardiovascular Sys., Inc. largely cabins the Qualcomm II decision to its particular facts and makes clear that AAPA can be used as evidence of background knowledge as part of an obviousness argument.

...

Read More

IP Newsflash

July 11, 2025

The Federal Circuit recently reversed a PTAB determination on remand that a patent was obvious over applicant admitted prior art (“AAPA”) in combination with prior art patents, holding that expressly designating AAPA as a “basis” for a ground is improper under 35 U.S.C. § 311(b). In doing so, the Court rejected the PTAB’s “blanket rule” that “AAPA used in combination with prior art patents or printed publications under § 311(b) is ipso facto not the basis or part of the basis of a ground.” Ultimately, while the case clarifies that expressly listing AAPA in an IPR ground is improper, the precise line between proper and improper uses of AAPA in other instances remains unclear.

...

Read More

© 2025 Akin Gump Strauss Hauer & Feld LLP. All rights reserved. Attorney advertising. This document is distributed for informational use only; it does not constitute legal advice and should not be used as such. Prior results do not guarantee a similar outcome. Akin is the practicing name of Akin Gump LLP, a New York limited liability partnership authorized and regulated by the Solicitors Regulation Authority under number 267321. A list of the partners is available for inspection at Eighth Floor, Ten Bishops Square, London E1 6EG. For more information about Akin Gump LLP, Akin Gump Strauss Hauer & Feld LLP and other associated entities under which the Akin Gump network operates worldwide, please see our Legal Notices page.