Kioba Processing v. Citibank: Seven-Patent Authentication Dispute Ends in Dismissal With Prejudice
Kioba Processing, LLC asserted seven patents against Citibank, N.A. covering ATM/debit card authentication, multi-factor verification, Face ID/Touch ID services, and transaction processing — products touching millions of Citi customers. The Western District of Texas case closed after 363 days when the parties stipulated to dismiss all claims with prejudice, strongly suggesting a negotiated resolution.
Seven authentication patents, one major bank, one agreed exit
On 17 November 2023, Kioba Processing, LLC filed suit against Citibank, N.A. in the Western District of Texas (Case No. 6:23-cv-00787) before Judge Fred Biery, asserting infringement of seven U.S. patents. The asserted patents — US6332134B1, US8442915B2, US6917902B2, US6931382B2, US7107078B2, US9471888B2, and US6862610B2 — collectively span authentication workflows, card transaction processing, and secure access technologies. The accused products encompassed Citibank ATM/debit and credit cards, Quick Lock services, Face ID/Touch ID login, two-step and multi-factor authentication, automated phone services, and the Citi.com web platform.
The case closed on 14 November 2024 — one year after filing — when both parties filed a stipulated dismissal under Federal Rule of Civil Procedure 41(a)(1)(A)(ii), dismissing all claims with prejudice. The with-prejudice designation means Kioba cannot re-file the same claims against Citibank on these patents. The fee arrangement — each side bearing its own attorneys’ fees and costs — is consistent with settled patent disputes where the defendant makes a payment and both parties walk away without a public damages record.
A resolution in under 363 days, before any substantive claim construction or trial proceedings became public, suggests the parties reached commercial terms relatively early. The public record does not disclose any licensing payment, royalty rate, or settlement sum, which is common in NPE-versus-bank fintech disputes resolved privately. What remains unknown is whether Citibank obtained a broad license to the asserted portfolio or a narrower product-specific release — a distinction that could matter for other financial institutions assessing their own exposure to Kioba’s patents.
Filing to Dismissed with Prejudice in 363 days
363 days — resolved before trial, typical of licensed settlements in W.D. Tex. NPE cases
Dismissed with prejudice: what the stipulated exit means for both parties
Rule 41(a)(1)(A)(ii) stipulated dismissal — what it means
A dismissal under Rule 41(a)(1)(A)(ii) is jointly signed by all parties, requires no court approval on the merits, and takes effect immediately upon filing. The with-prejudice designation is critical: it operates as a final adjudication on the merits for res judicata purposes, permanently barring Kioba from re-asserting the same claims against Citibank based on these seven patents. Courts in W.D. Tex. routinely enter these orders after confidential settlement agreements are executed.
Rule 41 — permanent bar on re-filingKioba exits with prejudice — no public win, but claims extinguished by choice
Kioba voluntarily agreed to dismiss with prejudice, which typically signals it received consideration — most likely a licensing payment or lump-sum settlement — sufficient to justify permanently closing the door on these claims. The patents themselves remain in force and Kioba retains the ability to assert them against other defendants. The fact that Kioba’s counsel (Daignault Iyer LLP) filed no public damages demand suggests the resolution was commercially negotiated rather than litigated to judgment.
Patents survive — other defendants remain exposedCitibank achieves finality — at a price the market cannot see
Citibank secured a with-prejudice dismissal, meaning it faces no further litigation risk from Kioba on these seven patents for the accused products. The cost to achieve that finality — any settlement sum — is not disclosed in the public record. The each-party-bears-own-fees structure suggests Citibank did not obtain an exceptional-case fee award, consistent with a negotiated exit rather than a merits victory. Locke Lord LLP represented Citibank with a five-attorney team, signalling the bank treated this as a significant matter.
Finality secured — settlement terms undisclosedOther banks and fintech platforms should monitor Kioba’s remaining enforcement activity
Kioba’s seven-patent portfolio covers authentication and card-security workflows broadly deployed across the financial services sector. A confidential settlement with Citibank without a public invalidity ruling leaves the patents’ legal strength untested. Other banks, card networks, and fintech providers offering MFA, biometric login, Quick Lock-style card controls, or similar services should assess whether they fall within the claimed scope — Kioba retains full rights to assert the same patents elsewhere.
Portfolio still active — sector-wide FTO review warrantedFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Kioba Processing, LLC | Company | Patent assertion entity — holder of US6332134B1 and 6 related authentication patentsSearch in Eureka ↗ |
| Defendant | Citibank, NA | Individual | Citibank, N.A. — major U.S. retail and commercial bank, subsidiary of Citigroup Inc.Search in Eureka ↗ |
| Plaintiff counsel | Elizabeth Bernard | Attorney | Counsel for Kioba Processing, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Tedd W. Van Buskirk | Attorney | Counsel for Kioba Processing, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Zachary H. Ellis | Attorney | Counsel for Kioba Processing, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Daignault Iyer LLP | Law Firm | Representing Kioba Processing, LLCSearch in Eureka ↗ |
| Defendant counsel | Charles E. Phipps | Attorney | Counsel for Citibank, NASearch in Eureka ↗ |
| Defendant counsel | Christopher J. Capelli | Attorney | Counsel for Citibank, NASearch in Eureka ↗ |
| Defendant counsel | Daniel G. Nguyen | Attorney | Counsel for Citibank, NASearch in Eureka ↗ |
| Defendant counsel | Mark A. Hannemann | Attorney | Counsel for Citibank, NASearch in Eureka ↗ |
| Defendant counsel | Robert T. Mowrey | Attorney | Counsel for Citibank, NASearch in Eureka ↗ |
| Defendant law firm | Locke Lord LLP | Law Firm | Representing Citibank, NASearch in Eureka ↗ |
| Presiding judge | Judge Fred Biery | Judge | Texas Western District CourtSearch in Eureka ↗ |
Official order — verbatim text
The stipulated dismissal language — ‘the parties have resolved their claims for relief’ — is standard settlement boilerplate that deliberately avoids characterising the consideration exchanged. The with-prejudice designation, chosen by both parties rather than imposed by the court, confirms this is a final consensual resolution. No merits findings were made on infringement, validity, or claim construction. The practical effect is that all seven asserted patents remain valid and enforceable against third parties, while Citibank achieves permanent immunity from Kioba’s claims on the accused products.
US6332134B1 and six co-asserted patents — authentication and card transaction processing
The seven asserted patents — US6332134B1, US8442915B2, US6917902B2, US6931382B2, US7107078B2, US9471888B2, and US6862610B2 — collectively address authentication workflows, card-based transaction processing, and secure system access. Several carry priority dates in the early 2000s (application numbers beginning US09/ and US10/), placing their inventive concepts in the pre-smartphone era of internet banking and card security. US9471888B2, with a later application number (US14/), likely captures continuation or continuation-in-part claims extending the portfolio’s reach into more modern authentication paradigms.
The breadth of accused products — spanning physical debit/credit cards, biometric login (Face ID/Touch ID), multi-factor authentication, automated phone services, and web platform access — suggests Kioba’s claim mapping was designed to cover core banking infrastructure rather than a single product line. This portfolio-breadth strategy is common in NPE fintech enforcement and raises the cost of defence for any targeted institution. For financial services firms deploying similar authentication stacks, the fact that no court has invalidated or narrowed these claims means the portfolio retains its full enforcement posture.
Should you run an FTO against US6332134B1 and Kioba’s authentication portfolio?
Any bank, credit union, neobank, or fintech platform offering biometric login, card lock/unlock features, multi-factor authentication, or automated verification services should treat this portfolio as an active enforcement risk. Kioba resolved with Citibank on undisclosed terms, which means the patents are neither invalidated nor licensed to the broader market. Product teams deploying MFA workflows, app-based card controls, or voice/web authentication should assess claim overlap before launch or scale.
PatSnap Eureka’s FTO Search Agent can map each of the seven asserted patent claims against your specific product architecture — identifying independent claims most relevant to ATM card processing, biometric authentication, and two-step verification. Eureka’s citation analysis surfaces prior art that could support a validity challenge if enforcement is threatened, and its portfolio monitoring alerts you if Kioba files against additional defendants in the same technology space.
Run a freedom-to-operate analysis on US6332134B1 to assess your product’s exposure
Run FTO in Eureka →Similar authentication and fintech patent cases in W.D. Texas
Cases involving NPE authentication and card-processing patent assertions in the Western District of Texas and comparable federal venues.
What this case signals for the fintech authentication IP landscape
A seven-patent assertion resolved in under a year without a public merits ruling is a pattern worth tracking for any financial services IP team.
Undisclosed settlement terms leave the patent portfolio’s strength opaque
Because the case ended by stipulated dismissal with no claim construction order, no IPR petitions filed, and no summary judgment ruling, none of Kioba’s seven patents have been publicly tested for validity or infringement scope. For competing banks or fintech firms, this means the patents retain their presumption of validity and full enforcement potential against new targets.
W.D. Tex. remains a preferred venue for NPE authentication patent assertions
Filing in the Western District of Texas under Judge Biery — a court with established patent docket management — signals strategic venue selection. Financial services defendants facing similar assertions should evaluate early transfer motions to venues where they have stronger procedural footing, or prepare for W.D. Tex. timelines that pressure early settlement.
Kioba v Citibank — key questions answered
Kioba asserted seven patents: US6332134B1, US8442915B2, US6917902B2, US6931382B2, US7107078B2, US9471888B2, and US6862610B2. These cover authentication, card transaction processing, and secure access systems. The accused products included Citibank ATM/debit/credit cards, Quick Lock services, Face ID/Touch ID login, multi-factor authentication, and the Citi.com web platform.
The case was resolved by a stipulated dismissal with prejudice under Rule 41(a)(1)(A)(ii), filed 14 November 2024. With-prejudice dismissal permanently bars Kioba from re-asserting the same claims against Citibank based on these patents. The parties stated they had ‘resolved their claims,’ strongly suggesting a confidential settlement. No settlement terms were disclosed publicly.
No court ruling on the merits was issued. The case ended by mutual stipulated dismissal, not a judgment in favour of either party. Citibank achieved finality — it cannot be sued again by Kioba on these patents for the accused products — but no finding of non-infringement or invalidity was made. The outcome is consistent with a negotiated resolution rather than a litigated win.
Yes. A with-prejudice dismissal resolves only the dispute between Kioba and Citibank. The seven asserted patents remain valid, in force, and fully enforceable against any other party. No invalidity finding, IPR petition, or claim construction order was issued in this case, meaning the patents retain their full presumption of validity under 35 U.S.C. § 282.
The Western District of Texas is a favoured NPE venue due to its established patent docket and relatively swift case management. Citibank maintains sufficient operations in Texas to support venue. The choice of W.D. Tex. by patent assertion entities typically creates settlement pressure given the district’s litigation timelines and proximity to major financial operations.
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