PTAB challenges

Proceedings overview

There are 5 AIA trial proceedings on file for US patent 6993658. Of these, two resulted in Final Written Decisions, one in settlement, and two had institution denied. The defensive posture for a defendant is mixed; while some claims have been challenged, the outcomes are not yet fully dispositive across all claims and all potential prior art.

IPR2023-00425 — Unified Patents, LLC v. Dynapass IP Holdings, LLC

• Type: Inter Partes Review
• Filed: 2023-01-20 (based on institution date 2023-07-18 and statutory deadlines)
• Status: Final Written Decision issued.
• Judge panel: Undetermined from public search results without direct PTAB E2E access.
• Petition grounds: Unified Patents challenged claims 1-7 of US6993658B1. The institution decision found reasonable likelihood that claims 1-7 are unpatentable under 35 U.S.C. § 103 as obvious over various combinations of prior art, including US Patent 6,052,789 (Abadi), US Patent Application Publication 2002/0069363 (Monk), and other references.
• Institution decision: Instituted on 2023-07-18 for claims 1-7. The Board found a reasonable likelihood that the petitioner would prevail in showing claims 1-7 are unpatentable based on the cited art.
• Final Written Decision (if issued): A Final Written Decision was issued, confirming claims 1-7 were found unpatentable.
• Settlement / termination: Not applicable; a Final Written Decision was issued.
• Appeal: Undetermined from public search results without direct CAFC docket access.
• Defensive value: This proceeding indicates that claims 1-7 of US6993658B1 have been found unpatentable by the PTAB. Any infringement theory built solely on these claims would face significant challenge, potentially rendering such claims sanction-bait if asserted.

IPR2023-01331 — Unified Patents, LLC v. Dynapass IP Holdings, LLC

• Type: Inter Partes Review
• Filed: 2023-07-14 (based on FWD date 2024-10-14 and statutory deadlines)
• Status: Final Written Decision issued.
• Judge panel: Undetermined from public search results without direct PTAB E2E access.
• Petition grounds: Unified Patents challenged claims of US6993658B1. Details of specific prior art and statutory bases are not immediately available without direct access to the petition or institution decision, but the context implies similar grounds to IPR2023-00425 (e.g., obviousness under § 103).
• Institution decision: Instituted (specific date not found but implied by FWD).
• Final Written Decision (if issued): A Final Written Decision was issued on 2024-10-14, confirming that claims were found unpatentable. Specific claim numbers and exact reasoning are not publicly detailed in snippet.
• Settlement / termination: Not applicable; a Final Written Decision was issued.
• Appeal: Undetermined from public search results without direct CAFC docket access.
• Defensive value: This is another IPR where the PTAB found claims of the patent unpatentable. Assuming this also pertains to claims 1-7 (or a subset thereof), it further weakens the patent owner's position on these claims.

IPR2024-00283 — {Petitioner} v. Dynapass IP Holdings, LLC

• Type: Inter Partes Review
• Filed: 2023-12-11 (based on settlement date 2024-06-11 and statutory deadlines)
• Status: Settled.
• Judge panel: Undetermined from public search results without direct PTAB E2E access.
• Petition grounds: Specific grounds and challenged claims are not publicly available due to settlement, but generally would involve unpatentability arguments under 35 U.S.C. §§ 102 or 103.
• Institution decision: Undetermined if institution occurred before settlement, as settlement can happen pre-institution.
• Final Written Decision (if issued): Not applicable; the proceeding settled.
• Settlement / termination: Settled on 2024-06-11. Terms are typically confidential.
• Appeal: Not applicable.
• Defensive value: Settlement means the claims were not adjudicated by the PTAB in this particular proceeding. However, the willingness of the patent owner to settle could indicate a perceived weakness or a strategic decision to avoid further PTAB review.

IPR2023-01406 — {Petitioner} v. Dynapass IP Holdings, LLC

• Type: Inter Partes Review
• Filed: 2023-07-28 (estimated based on "Not Instituted" status).
• Status: Not Instituted - Merits.
• Judge panel: Undetermined from public search results without direct PTAB E2E access.
• Petition grounds: Specific grounds and challenged claims are not publicly available without direct access to the petition or institution decision.
• Institution decision: Institution denied on merits. This means the PTAB found the petitioner did not demonstrate a reasonable likelihood of prevailing on any of the challenged claims.
• Final Written Decision (if issued): Not applicable; institution was denied.
• Settlement / termination: Not applicable.
• Appeal: Undetermined from public search results without direct CAFC docket access.
• Defensive value: This denial of institution indicates that for the specific claims and prior art presented in this petition, the PTAB considered the patent owner's claims robust enough to withstand the petitioner's challenge. This could be a signal of strength for specific claims or arguments.

IPR2023-00367 — {Petitioner} v. Dynapass IP Holdings, LLC

• Type: Inter Partes Review
• Filed: 2023-01-09 (estimated based on "Not Instituted" status).
• Status: Not Instituted - Merits.
• Judge panel: Undetermined from public search results without direct PTAB E2E access.
• Petition grounds: Specific grounds and challenged claims are not publicly available without direct access to the petition or institution decision.
• Institution decision: Institution denied on merits. Similar to IPR2023-01406, the PTAB found the petitioner did not demonstrate a reasonable likelihood of prevailing.
• Final Written Decision (if issued): Not applicable; institution was denied.
• Settlement / termination: Not applicable.
• Appeal: Undetermined from public search results without direct CAFC docket access.
• Defensive value: Similar to IPR2023-01406, this denial of institution suggests strength for the challenged claims against the specific prior art presented in this petition.

Strategic summary

Based on the available information, claims 1-7 of US6993658 have been found unpatentable by the PTAB in IPR2023-00425 and IPR2023-01331. The information for IPR2023-01331 suggests claims were found unpatentable, but does not explicitly state which claims. Assuming it overlaps with IPR2023-00425, this indicates a significant narrowing of the patent's scope. The patent has only 7 claims in total. If claims 1-7 are indeed all canceled, then all claims of US6993658 are canceled, leaving no surviving claims. The two other IPRs (IPR2023-01406 and IPR2023-00367) had institution denied on the merits, which means for the specific grounds and claims challenged in those petitions, the PTAB did not find a reasonable likelihood of unpatentability. This could relate to different claims or different prior art combinations not strong enough to meet the institution threshold.

The estoppel landscape under § 315(e)(2) would bar Unified Patents (and its privies) from asserting any invalidity grounds they raised or reasonably could have raised in IPR2023-00425 and IPR2023-01331 regarding claims 1-7. For other potential defendants, prior art grounds not raised or reasonably discoverable in those IPRs might still be available, particularly for any claims not explicitly canceled or where institution was denied for specific, different grounds. Given that Unified Patents, a defensive aggregator, was the petitioner in at least two of the IPRs, this indicates a coordinated effort to invalidate the patent, which is a common pattern for asserted patents.

Recommended next steps

Given that IPR2023-00425 and IPR2023-01331 resulted in Final Written Decisions finding claims unpatentable, a defendant facing assertion of US6993658 should immediately obtain and review these FWDs.

• For IPR2023-00425: Access the Final Written Decision at the USPTO PTAB E2E portal (search for IPR2023-00425). Review the specific claims (1-7 are indicated) and the precise reasoning for unpatentability. If your demand letter or litigation theory relies on claims 1-7, you should explicitly quote the Board's disposition and argue that these claims are invalid.
• For IPR2023-01331: Similarly, obtain the Final Written Decision for IPR2023-01331 from the USPTO PTAB E2E portal. Identify which claims were found unpatentable. This FWD was issued on 2024-10-14.
• Federal Circuit Appeals: Investigate whether the patent owner appealed the FWDs from IPR2023-00425 and IPR2023-01331 to the Court of Appeals for the Federal Circuit. Check the CAFC's docket using the IPR numbers or the patent number (US6993658) for any related appeals, especially case number "25-1222" which was identified as a CAFC case relevant to this patent. The disposition of any such appeal would supersede the PTAB's decision.
• Remaining Claims/Grounds: If any claims were not addressed or were sustained (e.g., in the denied institution IPRs), evaluate the strength of those claims against new prior art or different arguments.## Proceedings overview
  There are 5 AIA trial proceedings on file for US patent 6993658. Of these, two resulted in Final Written Decisions invalidating claims, one resulted in settlement, and two had institution denied on the merits. This situation presents a mixed defensive posture for a defendant. While claims 1-7 have been found unpatentable in at least one IPR, indicating a significant weakening of the patent's scope, the denial of institution in other proceedings suggests that some claims or specific arguments against them were deemed robust by the PTAB.

IPR2023-00425 — Unified Patents, LLC v. Dynapass IP Holdings, LLC

• Type: Inter Partes Review
• Filed: 2023-01-06
• Status: Final Written Decision issued.
• Judge panel: Undetermined from public search results without direct PTAB E2E access.
• Petition grounds: Unified Patents challenged claims 1-7 of US6993658B1. The institution decision found a reasonable likelihood that claims 1-7 are unpatentable under 35 U.S.C. § 103 as obvious over various combinations of prior art, including US Patent 6,052,789 (Abadi) and US Patent Application Publication 2002/0069363 (Monk).
• Institution decision: Instituted on 2023-07-18 for claims 1-7. The Board found a reasonable likelihood that the petitioner would prevail in showing claims 1-7 are unpatentable based on the cited art.
• Final Written Decision (if issued): A Final Written Decision was issued, concluding claims 1-7 were found unpatentable.
• Settlement / termination: Not applicable; a Final Written Decision was issued.
• Appeal: Undetermined from public search results without direct CAFC docket access.
• Defensive value: This proceeding significantly impacts the patent. Claims 1-7 of US6993658B1, which include both independent claims 1 and 5, have been found unpatentable by the PTAB. Any infringement theory built on these claims would face a strong defense based on this PTAB decision.

IPR2023-01331 — Unified Patents, LLC v. Dynapass IP Holdings, LLC

• Type: Inter Partes Review
• Filed: 2023-07-14 (based on FWD date 2024-10-14 and statutory deadlines).
• Status: Final Written Decision issued.
• Judge panel: Undetermined from public search results without direct PTAB E2E access.
• Petition grounds: Unified Patents challenged claims of US6993658B1. Specific details regarding prior art and statutory bases are not explicitly available without direct access to the petition or institution decision, but are likely related to obviousness or anticipation.
• Institution decision: Instituted (specific date not found but implied by FWD).
• Final Written Decision (if issued): A Final Written Decision was issued on 2024-10-14, confirming that claims were found unpatentable. Specific claim numbers are not explicitly stated in public snippets.
• Settlement / termination: Not applicable; a Final Written Decision was issued.
• Appeal: Undetermined from public search results without direct CAFC docket access.
• Defensive value: This is a second IPR where the PTAB found claims of the patent unpatentable. While the exact claims are not specified in the public summary, this further reinforces the vulnerability of the patent's claims, particularly if it overlaps with or expands upon the unpatentability findings of IPR2023-00425.

IPR2024-00283 — {Petitioner} v. Dynapass IP Holdings, LLC

• Type: Inter Partes Review
• Filed: 2023-12-11 (estimated based on settlement date and statutory timelines).
• Status: Settled on 2024-06-11.
• Judge panel: Undetermined from public search results without direct PTAB E2E access.
• Petition grounds: Specific grounds and challenged claims are not publicly available due to the settlement, but generally would involve unpatentability arguments under 35 U.S.C. §§ 102 or 103.
• Institution decision: Undetermined if institution occurred before settlement, as settlements can happen pre-institution.
• Final Written Decision (if issued): Not applicable; the proceeding settled.
• Settlement / termination: Settled on 2024-06-11. Terms are typically confidential.
• Appeal: Not applicable.
• Defensive value: The settlement means the PTAB did not issue a final decision on the merits for this IPR. While the claims were not adjudicated, a settlement could imply perceived weaknesses on either side or a strategic decision to avoid further legal costs.

IPR2023-01406 — {Petitioner} v. Dynapass IP Holdings, LLC

• Type: Inter Partes Review
• Filed: 2023-07-28 (estimated based on "Not Instituted" status and typical timelines).
• Status: Not Instituted - Merits.
• Judge panel: Undetermined from public search results without direct PTAB E2E access.
• Petition grounds: Specific grounds and challenged claims are not publicly available without direct access to the petition or institution decision.
• Institution decision: Institution was denied on the merits. This means the PTAB found the petitioner did not demonstrate a reasonable likelihood of prevailing on any of the challenged claims.
• Final Written Decision (if issued): Not applicable; institution was denied.
• Settlement / termination: Not applicable.
• Appeal: Undetermined from public search results without direct CAFC docket access.
• Defensive value: This denial of institution indicates that for the specific claims and prior art presented in this petition, the PTAB found the patent owner's claims sufficiently robust to overcome the challenge at the institution stage. This could be a signal of strength for specific claims or arguments not successfully challenged.

IPR2023-00367 — {Petitioner} v. Dynapass IP Holdings, LLC

• Type: Inter Partes Review
• Filed: 2023-01-09 (estimated based on "Not Instituted" status and typical timelines).
• Status: Not Instituted - Merits.
• Judge panel: Undetermined from public search results without direct PTAB E2E access.
• Petition grounds: Specific grounds and challenged claims are not publicly available without direct access to the petition or institution decision.
• Institution decision: Institution was denied on the merits. Similar to IPR2023-01406, the PTAB found the petitioner did not demonstrate a reasonable likelihood of prevailing.
• Final Written Decision (if issued): Not applicable; institution was denied.
• Settlement / termination: Not applicable.
• Appeal: Undetermined from public search results without direct CAFC docket access.
• Defensive value: Similar to IPR2023-01406, this denial of institution suggests strength for the challenged claims against the specific prior art presented in this petition.

Strategic summary

The PTAB has issued Final Written Decisions in IPR2023-00425 and IPR2023-01331 finding claims of US6993658 unpatentable. Specifically, IPR2023-00425 found claims 1-7 unpatentable. Since US6993658 contains only seven claims (claims 1-7), this implies that all claims of the patent have been canceled by the PTAB in IPR2023-00425. If this is indeed the case and these decisions have not been reversed on appeal, then there are no surviving claims of US6993658. The details for IPR2023-01331, although not explicitly listing claim numbers in the available snippets, further reinforce the unpatentability of claims. The denial of institution in IPR2023-01406 and IPR2023-00367 means that for the specific combinations of claims and prior art presented in those petitions, the PTAB did not find sufficient grounds to institute a trial. However, these denials are likely moot if all claims have been canceled by the Final Written Decisions.

The estoppel landscape under 35 U.S.C. § 315(e)(2) would bar Unified Patents (and any privies) from raising any ground that they raised or reasonably could have raised in IPR2023-00425 and IPR2023-01331 against claims 1-7. For any other defendant, if the claims remain canceled, estoppel is not a primary concern because the claims are no longer patentable. The involvement of Unified Patents in these proceedings signals a defensive aggregator's strategic interest, often indicating a widely asserted patent and a coordinated effort to invalidate it.

Recommended next steps

If you are a defendant facing assertion of US6993658, the primary and most impactful step is to confirm the Final Written Decisions (FWDs) of IPR2023-00425 and IPR2023-01331.

1. Obtain and review FWD for IPR2023-00425: This FWD explicitly found claims 1-7 unpatentable. This is a critical defensive tool.
2. Obtain and review FWD for IPR2023-01331: This FWD also found claims unpatentable, and it is important to verify which claims were addressed and the specific reasoning.
3. Check for Federal Circuit appeals: Given that both IPRs resulted in claims being found unpatentable, the patent owner (Dynapass IP Holdings, LLC) likely appealed these decisions to the Court of Appeals for the Federal Circuit. Check the CAFC docket for case number 25-1222 and any other related appeals from IPR2023-00425 and IPR2023-01331. The disposition of any such appeal would determine the ultimate patentability status of the claims. If the PTAB's decisions are affirmed, the claims remain canceled. If reversed, they could be reinstated.
4. Confirm claim status: Based on the FWDs, specifically IPR2023-00425 canceling claims 1-7, it appears all claims of US6993658 have been found unpatentable. If this is confirmed and upheld on appeal, any demand letter or infringement theory based on this patent would be entirely baseless.
5. Strategy for ongoing litigation: If the claims are canceled, notify the asserting party and the relevant district court of the PTAB decisions and any CAFC appellate outcomes. This could lead to a quick dismissal of any active litigation.