Auth Token LLC v. First Mid Bancshares: Infringement Suit Ends in 8 Days
Auth Token, LLC filed suit against Illinois-based bank holding company First Mid Bancshares, Inc. in the Northern District of Illinois asserting US8375212B2, covering a method for personalising an authentication token. The case was voluntarily dismissed with prejudice just 8 days after filing, with each party bearing its own costs — before the defendant had answered or moved for summary judgment.
A lightning-fast dismissal in a financial-sector authentication patent suit
On 8 May 2025, Auth Token, LLC filed a patent infringement complaint against First Mid Bancshares, Inc. in the U.S. District Court for the Northern District of Illinois before Judge Jeremy C. Daniel. The asserted patent, US8375212B2 (application no. US12/978754), protects a method for personalising an authentication token — a technology directly relevant to digital banking and secure login workflows. First Mid Bancshares is a bank holding company, making it a plausible target for assertions tied to multi-factor or token-based authentication.
Just eight days after filing, on 16 May 2025, Auth Token invoked Federal Rule of Civil Procedure 41(a)(1)(A)(i) to voluntarily dismiss the action with prejudice. Because the defendant had not yet answered or moved for summary judgment, the dismissal was available as of right. The with-prejudice designation is legally significant: it operates as a final adjudication on the merits, permanently barring Auth Token from reasserting US8375212B2 against First Mid Bancshares in any future proceeding.
The eight-day lifespan suggests the resolution was likely pre-negotiated or that plaintiff counsel determined pursuit was not viable before the defendant formally engaged. The public record does not disclose whether a licensing agreement or any other consideration was exchanged — that remains unknown. No defendant counsel appeared of record, which is consistent with the timeline: the case closed before responsive pleadings were due. The cost-neutrality provision is standard for Rule 41(a)(1)(A)(i) exits and does not indicate a payment by either side.
Filing to Voluntary dismissal in 8 days
Resolved in 8 days — among the shortest lifespans for a patent infringement action in N.D. Ill.
Dismissed with prejudice: what Rule 41(a)(1)(A)(i) means for both parties
Rule 41(a)(1)(A)(i): plaintiff’s unilateral exit before answer
Under Fed. R. Civ. P. 41(a)(1)(A)(i), a plaintiff may dismiss an action without a court order if filed before the defendant serves an answer or a motion for summary judgment. Auth Token exercised this right and added a with-prejudice designation — a voluntary upgrade that carries greater finality than the default without-prejudice outcome. The court entered no independent order; the notice itself effected the dismissal.
Voluntary dismissal — Rule 41(a)(1)(A)(i)With prejudice: Auth Token permanently surrenders this claim against First Mid
A with-prejudice dismissal is a final adjudication on the merits. Auth Token cannot refile this action against First Mid Bancshares on US8375212B2 in any court. The decision to choose with-prejudice over the default without-prejudice suggests either a settlement with a covenant not to sue, a strategic retreat, or a conclusion that the claim lacked sufficient merit to pursue. The public record does not disclose which scenario applies.
Claim permanently extinguishedFirst Mid Bancshares exits without admitting liability or paying disclosed fees
First Mid Bancshares never filed an answer, engaged counsel of record, or incurred disclosed legal costs in this matter. The each-party-bears-own-costs provision means no fee award was sought or granted. The defendant is now permanently shielded from future suit by Auth Token on this patent. Whether any private arrangement accompanied the dismissal — such as a licence or covenant — is not reflected in the public record.
No liability, no disclosed costsAuthentication token assertions remain active — other defendants are unaffected
The with-prejudice dismissal binds only Auth Token and First Mid Bancshares. US8375212B2 remains in force and can be asserted against other financial institutions or technology companies deploying personalised authentication token methods. Banks and fintech platforms with token-based authentication workflows should note that this resolution does not signal patent invalidity — it is purely a party-specific outcome with no precedential effect on claim scope.
Patent remains enforceable vs. othersFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Auth Token, LLC | Company | Patent assertion entity — holder of US8375212B2, authentication token personalisation methodSearch in Eureka ↗ |
| Defendant | First Mid Bancshares, Inc. | Company | First Mid Bancshares, Inc. — Illinois-based bank holding company and financial services groupSearch in Eureka ↗ |
| Plaintiff counsel | Isaac Philip Rabicoff | Attorney | Counsel for Auth Token, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Rabicoff Law LLC | Law Firm | Representing Auth Token, LLCSearch in Eureka ↗ |
| Presiding judge | Judge Jeremy C. Daniel | Judge | Illinois Northern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The dismissal notice invokes Rule 41(a)(1)(A)(i) and expressly designates the dismissal as with prejudice — a plaintiff-elected upgrade from the default without-prejudice outcome available under that rule. The with-prejudice designation operates as a final judgment on the merits, permanently precluding Auth Token from reasserting these claims against First Mid Bancshares. The cost-neutrality clause is consistent with an early-stage exit where no substantive litigation work was performed by either side. No merits ruling was issued and no claim construction occurred, meaning the patent’s validity and scope remain entirely untested by this proceeding.
US8375212B2 — Method for Personalizing an Authentication Token
US8375212B2 (application no. US12/978754) protects a method for personalising an authentication token — a process by which a generic token is customised with user-specific attributes to strengthen identity verification. Authentication tokens are foundational to multi-factor authentication (MFA), online banking portals, and enterprise access management systems. The patent’s claims are directed to method steps, meaning any entity executing the covered personalisation workflow — regardless of hardware — is potentially within scope.
For the financial services sector, personalised authentication tokens are pervasive: they underpin card-not-present transaction security, mobile banking login, and API-level access controls. A method patent of this type can capture a wide range of implementations, making it strategically potent for assertion against banks, payment processors, and fintech platforms. Because no claim construction or invalidity ruling emerged from this case, the full scope of US8375212B2 remains legally unsettled — which sustains the patent’s assertion value against future defendants.
Should your team run an FTO against US8375212B2?
Any organisation deploying authentication token personalisation in financial services, fintech, enterprise SaaS, or identity management should treat US8375212B2 as a live risk. The patent was never invalidated, its claims were never construed, and the rapid dismissal of this case provides no safe-harbour inference for third parties. If your product issues, personalises, or manages authentication tokens as part of a login or transaction workflow, a targeted freedom-to-operate review against the independent claims of US8375212B2 is warranted.
PatSnap Eureka’s FTO Search Agent can map the method steps in US8375212B2 against your product’s authentication architecture, identify design-around options, and surface prior art that could support an IPR petition if needed. Eureka’s claim-level analysis allows R&D and legal teams to pinpoint exactly which workflow stages create exposure — enabling precise, cost-efficient risk management before a complaint arrives.
Run a freedom-to-operate analysis on US8375212B2 to assess your product’s exposure
Run FTO in Eureka →Similar Authentication Token Patent Cases in N.D. Illinois & Financial Sector
Cases involving authentication token and digital identity patents in N.D. Illinois and against financial institutions — with comparable assertion and dismissal patterns.
What this case signals for the authentication technology IP landscape
An 8-day case lifecycle in N.D. Ill. is a strong signal worth examining for any financial institution operating token-based authentication.
Ultra-short case duration suggests pre-filing negotiation or rapid retreat
Cases that close within days of filing in N.D. Ill. typically indicate either a pre-arranged resolution or a plaintiff’s swift reassessment of viability. No defendant counsel appeared, suggesting First Mid Bancshares may never have been formally served or engaged. Financial institutions facing similar filings should move quickly to assess exposure before costs accumulate.
With-prejudice designation protects First Mid — but no other defendant benefits
The with-prejudice bar is strictly bilateral. Other banks and fintech platforms deploying authentication token personalisation remain fully exposed to US8375212B2. The patent’s validity was never adjudicated, and no claim construction occurred. Competitors operating in this space cannot rely on this outcome as any form of shield.
Auth v First — key questions answered
The with-prejudice dismissal extinguishes Auth Token’s right to sue First Mid Bancshares again on US8375212B2, but it has no effect on the patent’s validity or enforceability against other defendants. The patent was never construed or challenged on the merits in this case, so it remains fully active.
The public record does not disclose the reason. Possible explanations include a pre-arranged settlement or licensing agreement, plaintiff’s reassessment of claim viability, or a failure to serve the defendant. The defendant filed no appearance and no counsel of record appeared, which is consistent with an extremely early resolution.
US8375212B2 is a U.S. patent covering a method for personalising an authentication token. The patent is directed to method steps by which an authentication token is customised with user-specific attributes — technology relevant to multi-factor authentication, online banking, and enterprise identity management systems.
Yes. The with-prejudice dismissal binds only Auth Token and First Mid Bancshares. US8375212B2 remains enforceable against any other party. Financial institutions and fintech platforms deploying authentication token personalisation methods should not interpret this outcome as a signal that the patent is invalid or unenforceable against them.
Rule 41(a)(1)(A)(i) allows a plaintiff to dismiss an action without a court order before the defendant serves an answer or a summary judgment motion. In patent cases, this is frequently used for early exits — whether after a settlement, a licencing deal, or a strategic retreat. The default is without prejudice, but plaintiffs may elect with-prejudice dismissal to foreclose any future refiling, which Auth Token did here.
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