PTAB challenges

Proceedings overview

One AIA trial proceeding has been filed against US Patent 11520346. This proceeding is currently active with a "Trial Instituted" status, meaning the PTAB has determined that at least one challenged claim has a reasonable likelihood of being found unpatentable. This indicates that the patent has not yet been hardened against challenge, and its claims are currently undergoing scrutiny.

IPR2025-01577 — Tesla, Inc. v. Perceptive Automata LLC

• Type: Inter Partes Review
• Filed: 2025-10-10
• Status: Trial Instituted. The PTAB has decided to institute an inter partes review, meaning a trial has begun on the patentability of at least some of the challenged claims.
• Judge panel: The judge panel information is not publicly available at this stage through a quick search, as the institution decision document itself would typically list the panel.
• Petition grounds: The specific claims challenged, prior art asserted, and statutory bases (§ 102 / § 103 / § 112) for the petition are not immediately available from the provided data or general search snippets. This information would be detailed in the petition and the institution decision.
• Institution decision: Instituted. The institution date is not explicitly stated in the provided snippet, but the IPR was filed on 2025-10-10, and the status was last modified on 2026-05-22. PTAB typically has a 6-month deadline from the petition filing to issue an institution decision. The decision would have found a reasonable likelihood that at least one claim is unpatentable.
• Final Written Decision: Not yet issued. The proceeding is currently in the trial phase.
• Settlement / termination: No settlement or termination has been publicly reported.
• Appeal: No appeal yet, as a Final Written Decision has not been issued.
• Defensive value: An active IPR trial indicates that at least some claims of US11520346 are under review for patentability. Until a Final Written Decision is issued, the validity of the challenged claims remains uncertain. If an assertion relies on claims currently challenged in this IPR, their enforceability is at risk.

Strategic summary

Currently, the patent US11520346 has one active Inter Partes Review, IPR2025-01577, filed by Tesla, Inc. Since the IPR is in the "Trial Instituted" phase, no claims have yet been canceled or sustained through a Final Written Decision. This means all claims of the patent are currently UNTESTED by a final PTAB decision, with the exception of those specifically challenged and instituted in IPR2025-01577, which are currently UNDER REVIEW. The patent has not been narrowed through IPR yet, nor has it been "hardened" by surviving a final decision.

Regarding the estoppel landscape, as IPR2025-01577 has been instituted, Tesla, Inc. (and any parties in privity with them) will be estopped under § 315(e)(2) from asserting in future district court litigation or other USPTO proceedings any ground that was raised or reasonably could have been raised during this IPR against claims that reach a Final Written Decision. For a defendant currently being asserted against, this means that if they are not Tesla or in privity with Tesla, they would still be able to raise prior-art grounds that are either different from those raised in IPR2025-01577, or, if the IPR does not result in a final decision on all claims, against those claims not subject to a final decision. The specific prior art grounds available will depend on the details of Tesla's petition and the institution decision once publicly available.

There is no discernible pattern signal of multiple IPRs by the same petitioner, nor aggressive PTAB appeals by the patent owner, as this is the first and only proceeding identified to date and it is still ongoing. The petitioner is Tesla, Inc., a major operating company, rather than a defensive aggregator.

Recommended next steps

For a defendant facing assertion of US11520346:

• Monitor IPR2025-01577 closely. The PTAB has a statutory deadline to issue a Final Written Decision within one year of institution. Given the filing date of 2025-10-10 and a likely institution around April 2026, the Final Written Decision would be expected around April 2027.
• Obtain and review the institution decision for IPR2025-01577 (once available on the USPTO PTAB E2E system). This document will detail the specific claims for which trial was instituted, the prior art cited, and the PTAB's reasoning for institution. This information is crucial for understanding the strength of the challenge and identifying potentially vulnerable claims.
• Consider whether your current product/service infringes any of the claims currently under review in IPR2025-01577. If so, the outcome of this IPR could significantly impact your defensive strategy.
• Evaluate potential prior art available to you. Since IPR2025-01577 is still active, the estoppel implications are not yet fully formed for the petitioner. For other parties not in privity, there may still be opportunities to bring new prior art challenges if deemed appropriate.
• Given that the IPR is pending, any settlement discussions with the patent owner should account for the ongoing validity challenge, as the value of the patent may decrease if claims are invalidated.
• Stay updated on the IPR's progress via the Unified Patents portal for IPR2025-01577.