PTAB challenges

Proceedings overview

There are two PTAB trial proceedings on file for US Patent 8,276,048. One proceeding, IPR2022-00666, was terminated by settlement, and the other, IPR2023-00064, was not instituted due to procedural reasons. Therefore, no claims of US8276048 have been invalidated by PTAB proceedings, leaving the patent's claims sustained. This gives a defendant a posture where the patent has survived two IPR attempts without any claims being invalidated.

IPR2023-00064 — {Petitioner: Not Public} v. {Patent Owner: Not Public}

• Type: Inter Partes Review
• Filed: 2022-10-27 (based on "IPR2023-00064 filed" date)
• Status: Not Instituted - Procedural. This means the PTAB did not proceed with a full review of the patent claims.
• Judge panel: Not publicly available in the provided text.
• Petition grounds: Not publicly available in the provided text.
• Institution decision: Denied (Procedural) - Not Instituted. The specific reasoning for the procedural denial is not detailed in the provided text.
• Final Written Decision (if issued): Not issued, as institution was denied.
• Settlement / termination: Not applicable, as institution was denied.
• Appeal: Not applicable.
• Defensive value: This proceeding offers no direct defensive value as no claims were challenged on the merits or invalidated. The procedural denial suggests the petition itself had deficiencies that prevented it from moving forward.

IPR2022-00666 — {Petitioner: Not Public} v. {Patent Owner: Not Public}

• Type: Inter Partes Review
• Filed: 2022-03-31 (based on "IPR2022-00666 filed" date)
• Status: Settlement. This means the parties reached an agreement and the proceeding was terminated before a final decision on the merits.
• Judge panel: Not publicly available in the provided text.
• Petition grounds: Not publicly available in the provided text.
• Institution decision: Not publicly available in the provided text, but assumed to have been instituted given the settlement.
• Final Written Decision (if issued): Not issued due to settlement.
• Settlement / termination: Settled. The exact terms of the settlement are confidential and not disclosed in the provided information.
• Appeal: Not applicable.
• Defensive value: This proceeding indicates that a petitioner challenged the patent but ultimately settled, preventing a decision on the merits. The confidential nature of the settlement means the specific defensive value is unknown without access to the settlement agreement. However, the claims were not invalidated.

Strategic summary

All claims of US8276048 remain SUSTAINED as neither of the filed PTAB proceedings resulted in claim invalidation. IPR2023-00064 was procedurally denied, meaning the petition itself did not meet the requirements for institution. IPR2022-00666 was terminated via settlement, which typically occurs after institution but before a final written decision. Thus, the patent has not been narrowed through IPR.

Regarding estoppel, since IPR2023-00064 was denied institution on procedural grounds, it likely does not trigger statutory estoppel under § 315(e)(2) against the petitioner for the prior art grounds raised in that petition. For IPR2022-00666, because it settled, the specifics of any estoppel would depend on the confidential settlement agreement. Absent an express agreement to the contrary, the statutory estoppel provision of § 315(e)(2) typically applies to claims on which a final written decision is entered, which did not occur here. Therefore, for a new defendant, most prior-art grounds remain available for potential challenge, subject to any confidential terms of the IPR2022-00666 settlement that might impact privies.

There is a pattern signal that Unified Patents initiated both IPR proceedings (IPR2023-00064 and IPR2022-00666). This suggests a defensive aggregator is actively monitoring and challenging patents asserted by TQ Delta LLC (the current assignee), which can be a signal that the patent is actively being asserted. The patent owner, TQ Delta LLC, successfully avoided claim invalidation in both instances, either through procedural denial or settlement.

Recommended next steps

There are no active PTAB proceedings on US8276048. If you are a defendant facing assertion of this patent, it is important to understand the specific terms of the settlement in IPR2022-00666, if possible, as it could impact available prior art or strategies. Given the previous attempts by Unified Patents, it is possible that further IPRs could be filed by other parties or by Unified Patents on different grounds if the patent continues to be asserted. The absence of claim invalidation through PTAB trials means that any infringement theories based on the original claims remain viable from a PTAB perspective.