Unreported / Non-Citable
Background
Emerging Automotive LLC sued Toyota entities in August 2025, alleging infringement of U.S. Patent Nos. 11,104,245, 12,337,715, and 12,337,716. The action was consolidated with a related case against Kia Corporation and Kia America, Inc.
Toyota and Kia petitioned the Patent Trial and Appeal Board for inter partes review and post-grant review of the asserted patents. Toyota moved to stay the district-court litigation before the PTAB issued its institution decisions. The PTAB subsequently instituted review of the ’245 patent but declined to institute review of the ’715 and ’716 patents. Kia took no position on Toyota’s motion.
The Court’s Holding
The court denied Toyota’s motion to stay. Applying the factors governing stays pending inter partes review, the court found that issue simplification and prejudice to Emerging Automotive weighed against a stay, while the stage of the litigation was neutral.
Issue simplification—the most important factor—cut against a stay because the PTAB had declined to institute review of two of the three asserted patents. Even if Toyota prevailed on every claim under review, material disputes involving the other patents would remain for the court and an active case would necessarily continue after the PTAB proceeding.
The litigation-stage factor was neutral because, although substantial work remained when Toyota filed its motion, discovery from earlier litigation between the parties could be used in this case and discovery was already well underway. The prejudice factor also weighed against a stay because delaying Emerging Automotive’s recovery of potential monetary damages constituted cognizable prejudice. Its status as a non-practicing entity, its decision not to seek an injunction, and its agreement to a stay in an earlier case did not eliminate that prejudice.
Key Takeaways
- Institution of inter partes review on only one of three asserted patents did not provide enough potential issue simplification to justify a stay.
- The availability of discovery from prior litigation supported treating the stage-of-litigation factor as neutral, despite the relatively early procedural posture.
- A patent owner may suffer prejudice from delayed monetary recovery even when it is a non-practicing entity and seeks no injunctive relief.
Why It Matters
The decision underscores that a partial PTAB institution may be insufficient to stay parallel patent litigation in the Eastern District of Texas. When unreviewed patents or claims ensure that material disputes will remain regardless of the PTAB’s decision, the issue-simplification factor can weigh affirmatively against a stay.
It also rejects the proposition that delay is largely harmless to a non-practicing patent owner seeking only damages. Parties seeking a stay must address the concrete prejudice caused by postponing potential monetary recovery and cannot rely solely on the absence of competitive harm or a request for injunctive relief.