The Director of the United States Patent and Trademark Office (USPTO) has recently overturned the board's decision to institute an inter partes review (IPR) based on an incorrect interpretation of the Fintiv factors. In this case, the Director concluded that the board had overly focused on the Petitioner’s Sotera stipulation, neglecting to give sufficient weight to the significant investments already made in the parallel litigation. After considering all relevant factors, the Director determined that the IPR should not be initiated.
The Petitioner had filed for an IPR of patents that were being asserted against it in a case in the Eastern District of Texas. The patent owner argued that the board should reject the IPR petition due to the advanced stage of the parallel litigation and the substantial amount of time and resources already committed to the case. However, the board had initially decided to move forward with the IPR, citing the Petitioner’s Sotera stipulation as a way to minimize the potential for duplicative efforts. The board argued that continuing with the litigation of patent invalidity in the district court would create a significant burden, and that the stipulation addressed concerns of overlapping issues.
However, the USPTO Director saw things differently upon reviewing the case. The Director emphasized that the board had failed to adequately account for the extensive resources that both the parties and the district court had already invested in the ongoing litigation. The Director highlighted several key factors:
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Misapplication of Burden on the District Court: The board's assertion that litigating invalidity issues alongside the infringement case would place an undue burden on the district court was found to be misplaced. This argument, according to the Director, could apply to almost any district court case and did not warrant a decision to institute the IPR.
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Substantial Investment in Parallel Litigation: Both parties had already committed significant resources to the case. They had exchanged infringement and invalidity contentions, provided expert reports, filed claim construction briefs, and conducted depositions. Moreover, the district court had already held a claim construction hearing and construed key claim terms.
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Upcoming Trial Date: The trial was scheduled to take place just eleven months before the board's anticipated final written decision, adding another layer of complexity to the situation.
Given the progress of the parallel litigation and the substantial investments made by both parties, the Director concluded that these factors weighed strongly against instituting the IPR.
In addition, the Director found that there was considerable overlap between the issues being raised in the district court and those in the IPR petition. The Petitioner’s invalidity arguments in the district court included similar prior art challenges to those raised in the IPR, and the Director determined that the Sotera stipulation was unlikely to address these overlaps in a meaningful way. Although the stipulation was intended to reduce the risk of redundant efforts across the two proceedings, it was insufficient to overcome the significant overlap in invalidity arguments and the ongoing investments in district court litigation.
The Director's decision underscores an important point for patent owners seeking to prevent an IPR: the advanced stage of a parallel litigation and the resources already invested may outweigh any efficiencies promised by a Sotera stipulation. Both petitioners and patent owners must consider how the timing of an IPR filing and developments in the corresponding district court case can influence the likelihood of a discretionary denial.
This decision came in the case of Motorola Solutions, Inc. v. Stellar, LLC, IPR2024-01205, Paper 19, under the acting leadership of Director Stewart on March 28, 2025.