Pardalis Technology Licensing v. IBM: 7-Patent Blockchain Dispute Dismissed With Prejudice
Pardalis Technology Licensing, LLC filed suit against IBM in the Eastern District of Texas asserting seven patents against IBM’s blockchain product suite, including IBM Food Trust and IBM Blockchain Platform. After 730 days of litigation, the parties jointly moved to dismiss all of Pardalis’s claims with prejudice — permanently closing the patent enforcement door against IBM.
PAE vs. IBM: A Two-Year Blockchain Patent Battle Ends Quietly
On November 22, 2022, Pardalis Technology Licensing, LLC — a patent assertion entity — filed suit against International Business Machines Corporation in the Eastern District of Texas, asserting seven U.S. patents against a broad range of IBM’s blockchain-related products. The accused products spanned IBM’s entire blockchain commercial portfolio, including IBM Food Trust, IBM Blockchain World Wire, IBM Digital Health Pass, and multiple versions of the IBM Blockchain Platform. The asserted patents cover technologies relating to data management, structured data access, and network-based information processing.
On November 21, 2024 — exactly two years after filing — the parties jointly moved for dismissal under Rule 41(a)(2) and (c). The court granted the motion the same day. Critically, the dismissal is asymmetric: all of Pardalis’s infringement claims are dismissed with prejudice, meaning Pardalis is permanently barred from re-filing those same claims against IBM on those patents. IBM’s counterclaims — which typically include invalidity and non-infringement defenses — were dismissed without prejudice, preserving IBM’s ability to revive them if Pardalis were ever to assert the patents again through another vehicle.
The two-year litigation timeline ending in a joint dismissal — with no public settlement terms disclosed — is consistent with a confidential resolution between the parties, though the public record is silent on financial terms. The with-prejudice dismissal of Pardalis’s claims is a structurally favorable outcome for IBM, eliminating future re-assertion risk on these seven patents. What drove the resolution — whether claim construction rulings, IPR petitions, or commercial negotiations — is not determinable from the public docket alone.
Filing to Dismissed with Prejudice in 730 days
730 days — approximately two years of active litigation in E.D. Texas before joint resolution
Asymmetric dismissal: what with- and without-prejudice means for both parties
Rule 41 joint dismissal — and why the asymmetry matters
Under Rule 41(a)(2) and (c), a court may dismiss claims and counterclaims on joint motion. Here the court granted an asymmetric order: Pardalis’s infringement claims dismissed with prejudice (permanent bar), while IBM’s counterclaims — invalidity, non-infringement — are dismissed without prejudice. This structure is commonly used in confidential settlements where the defendant wants to preserve defenses without conceding them.
Rule 41(a)(2) joint dismissalWith-prejudice dismissal extinguishes Pardalis’s enforcement rights against IBM
A with-prejudice dismissal functions as a final adjudication on the merits for claim-preclusion purposes. Pardalis cannot re-file these seven patent claims against IBM in any U.S. court. This effectively forecloses IBM as an enforcement target for this patent portfolio, at least under the current patent numbers. Pardalis retains the right to assert these patents against other defendants.
Claim preclusion applies vs. IBMIBM exits with counterclaims intact and no admitted liability
IBM’s counterclaims — which typically include invalidity and non-infringement contentions — are dismissed without prejudice, meaning IBM made no concessions on the merits. IBM neither admitted infringement nor paid any publicly disclosed damages. The each-party-bears-own-costs ruling removes any fee-shifting exposure. IBM retains the ability to revive invalidity arguments if the patents surface in future disputes.
No liability admitted; no fee awardSeven blockchain patents survive but IBM exposure is permanently closed
The seven asserted patents remain in force and Pardalis may assert them against other blockchain platform operators, supply-chain technology vendors, or digital health credential providers. Companies operating in the IBM blockchain ecosystem — particularly Food Trust partners and Hyperledger Fabric implementers — should note that the underlying claim scope was never adjudicated, leaving validity and infringement questions open for future enforcement actions against non-IBM targets.
Patents remain enforceable vs. third partiesFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Pardalis Technology Licensing, LLC | Company | Patent assertion entity — holder of US6671696B1 and 6 further data/blockchain patentsSearch in Eureka ↗ |
| Defendant | International Business Machines, Corp. | Company | International Business Machines Corp. — global technology company and developer of IBM Blockchain PlatformSearch in Eureka ↗ |
| Plaintiff counsel | Charles Austin Ginnings | Attorney | Counsel for Pardalis Technology Licensing, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Janson Westmoreland | Attorney | Counsel for Pardalis Technology Licensing, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Jonathan Hart Rastegar | Attorney | Counsel for Pardalis Technology Licensing, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Justin Bryce Kimble | Attorney | Counsel for Pardalis Technology Licensing, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Nathan Louis Levenson | Attorney | Counsel for Pardalis Technology Licensing, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Patrick Joseph Conroy | Attorney | Counsel for Pardalis Technology Licensing, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Robert A. Delafield, II | Attorney | Counsel for Pardalis Technology Licensing, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Rudolph Fink , IV | Attorney | Counsel for Pardalis Technology Licensing, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Thomas William Kennedy , Jr. | Attorney | Counsel for Pardalis Technology Licensing, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Timothy E. Grochocinski | Attorney | Counsel for Pardalis Technology Licensing, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Ty William Wilson | Attorney | Counsel for Pardalis Technology Licensing, LLCSearch in Eureka ↗ |
| Plaintiff counsel | William Ellsworth Davis , III | Attorney | Counsel for Pardalis Technology Licensing, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Davis Firm PC | Law Firm | Representing Pardalis Technology Licensing, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Nelson Bumgardner Conroy PC | Law Firm | Representing Pardalis Technology Licensing, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Nelson Bumgardner Conroy PC (Dallas) | Law Firm | Representing Pardalis Technology Licensing, LLCSearch in Eureka ↗ |
| Plaintiff law firm | The Davis Firm PC (Longview) | Law Firm | Representing Pardalis Technology Licensing, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Warren Rhoades, LLP (Arlington) | Law Firm | Representing Pardalis Technology Licensing, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Windels Marx Lane & Mittendorf | Law Firm | Representing Pardalis Technology Licensing, LLCSearch in Eureka ↗ |
| Defendant counsel | Allan Einar Carlsen | Attorney | Counsel for International Business Machines, Corp.Search in Eureka ↗ |
| Defendant counsel | Amanda Potter | Attorney | Counsel for International Business Machines, Corp.Search in Eureka ↗ |
| Defendant counsel | Andrea Leigh Fair | Attorney | Counsel for International Business Machines, Corp.Search in Eureka ↗ |
| Defendant counsel | Benjamin N. Luehrs | Attorney | Counsel for International Business Machines, Corp.Search in Eureka ↗ |
| Defendant counsel | Douglas Etts , Jr | Attorney | Counsel for International Business Machines, Corp.Search in Eureka ↗ |
| Defendant counsel | Frederick Ding | Attorney | Counsel for International Business Machines, Corp.Search in Eureka ↗ |
| Defendant counsel | Garrett C. Parish | Attorney | Counsel for International Business Machines, Corp.Search in Eureka ↗ |
| Defendant counsel | John M. Desmarais | Attorney | Counsel for International Business Machines, Corp.Search in Eureka ↗ |
| Defendant counsel | Joze F. Welsh | Attorney | Counsel for International Business Machines, Corp.Search in Eureka ↗ |
| Defendant counsel | Karim Z. Oussayef | Attorney | Counsel for International Business Machines, Corp.Search in Eureka ↗ |
| Defendant counsel | Patrick Reilly | Attorney | Counsel for International Business Machines, Corp.Search in Eureka ↗ |
| Defendant counsel | Ryan Thorne | Attorney | Counsel for International Business Machines, Corp.Search in Eureka ↗ |
| Defendant counsel | Thomas J. Derbish | Attorney | Counsel for International Business Machines, Corp.Search in Eureka ↗ |
| Defendant law firm | Desmarais LLP | Law Firm | Representing International Business Machines, Corp.Search in Eureka ↗ |
| Defendant law firm | Desmarais Llp – New York | Law Firm | Representing International Business Machines, Corp.Search in Eureka ↗ |
| Defendant law firm | Miller Fair Henry PLLC | Law Firm | Representing International Business Machines, Corp.Search in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order mirrors the language of the joint motion precisely, granting an asymmetric dismissal: Pardalis’s infringement claims are extinguished with prejudice while IBM’s counterclaims survive without prejudice. This formulation — standard in confidential settlements — ensures IBM concedes nothing on validity or infringement. The each-party-bears-own-costs clause removes any incentive for either side to seek exceptional-case attorneys’ fees under 35 U.S.C. § 285. No merits findings were issued on any of the seven asserted patents, leaving their validity and scope undetermined by this court.
US6671696B1 and 6 further patents — data management and blockchain technology
The seven patents asserted by Pardalis span a broad arc of data management and networked information processing technologies, with application numbers dating from the early 2000s through the mid-2010s. US6671696B1 — the earliest — covers foundational network-based data access, while later patents such as US10409902B2 and US11126790B2 address more contemporary data management architectures. The portfolio appears structured to capture technologies underlying blockchain platforms: distributed data handling, structured query processing, and network-based information exchange.
Asserting this seven-patent portfolio against IBM’s entire blockchain commercial suite — from supply-chain transparency (IBM Food Trust) to cross-border payments (World Wire) to digital health credentials (IBM Digital Health Pass) — suggests Pardalis mapped claim language across the Hyperledger Fabric architecture broadly. For competitors operating blockchain infrastructure with similar distributed ledger and data-access layers, the portfolio represents a meaningful enforcement risk that was never narrowed by claim construction findings in this case.
Should you run an FTO against the Pardalis blockchain patent portfolio?
Any company building or licensing blockchain platform infrastructure — particularly supply-chain transparency tools, digital credentialing systems, or distributed ledger payment networks — should conduct freedom-to-operate analysis against the seven Pardalis patents. Because no claim construction order or invalidity ruling was issued in this case, the full scope of enforceable claims remains legally open. IBM resolved its exposure confidentially; other operators in the Hyperledger Fabric ecosystem have no such protection.
PatSnap Eureka’s FTO Search Agent can map your product architecture against the claim sets of all seven Pardalis patents simultaneously, flag overlapping claim language, and surface prior art candidates relevant to PTAB challenge strategies. For blockchain and distributed-data product teams evaluating launch or expansion decisions, automated portfolio monitoring can also alert you to new Pardalis continuation filings before enforcement risk materialises.
Run a freedom-to-operate analysis on US6671696B1 to assess your product’s exposure
Run FTO in Eureka →Similar blockchain and data management patent cases in E.D. Texas
Cases involving blockchain platform patents and data management IP asserted in the Eastern District of Texas by patent assertion entities against enterprise technology companies.
Related patent case — similar technology
Comparable case in the same technology domain. Patent holder and defendant reached resolution after proceedings.
SettledRelated infringement action — same court
Comparable IBM Blockchain Platform for Anywhere-adjacent infringement action. Patent enforcement dynamics analysed in depth.
Active · District CourtRelated invalidity challenge — appellate outcome
Combined invalidity and infringement action in the same technology space. Decided after substantive proceedings.
DecidedPardalis Technology Licensing, LLC’s broader IP enforcement history
Pardalis Technology Licensing, LLC’s full litigation history covering prior enforcement, licensing activity, and inter partes review proceedings.
Portfolio viewWhat this case signals for the enterprise blockchain IP landscape
Seven patents, twelve IBM blockchain products, and a two-year E.D. Texas campaign — here is what practitioners should take away.
E.D. Texas remains the preferred venue for PAE blockchain enforcement
Pardalis’s choice of the Eastern District of Texas — a historically plaintiff-friendly docket — reflects a persistent PAE strategy in the blockchain and data management space. Companies deploying blockchain infrastructure should monitor NPE filings in E.D. Texas as an early indicator of assertion campaigns targeting the sector.
With-prejudice dismissal protects IBM but leaves the patent portfolio active
The asymmetric dismissal structure resolves IBM’s exposure cleanly, but the seven Pardalis patents were never invalidated or adjudicated as non-infringed. Blockchain platform operators, supply-chain technology vendors, and digital credential providers with overlapping technical architectures remain potential enforcement targets.
Claim construction and IPR timing likely shaped the settlement window
Two-year E.D. Texas cases that resolve by joint dismissal without a trial typically conclude near or after Markman proceedings. The timing here — exactly 24 months post-filing — suggests claim construction outcomes and any parallel PTAB proceedings may have materially influenced the resolution calculus for both sides.
Seven-patent portfolio signals a broad-claim licensing strategy worth mapping
Asserting seven patents across twelve IBM blockchain products suggests Pardalis has identified claim coverage across the full Hyperledger Fabric stack. IP teams at competing blockchain vendors should conduct targeted FTO analysis against the Pardalis portfolio before expanding product features that overlap with the asserted claim sets.
Pardalis v International — key questions answered
Pardalis Technology Licensing sued IBM in the Eastern District of Texas in November 2022, asserting seven patents against IBM’s blockchain product suite. After 730 days of litigation, the parties filed a joint motion to dismiss. The court dismissed all of Pardalis’s claims with prejudice and IBM’s counterclaims without prejudice on November 21, 2024. Each party bears its own costs.
Pardalis asserted seven U.S. patents: US6671696B1, US10409902B2, US9690765B2, US8307000B2, US7136869B2, US7949668B2, and US11126790B2. The patents relate to network-based data management, structured data access, and information exchange technologies alleged to cover IBM’s blockchain platform architecture.
A with-prejudice dismissal operates as a final judgment on the merits for claim-preclusion purposes. Pardalis is permanently barred from re-filing the same patent infringement claims against IBM on these seven patents in any U.S. court. However, Pardalis retains the right to assert the patents against other defendants, as no invalidity or non-infringement finding was made.
No. The court issued no merits ruling — no claim construction order addressing enforceability and no invalidity finding — before the case resolved. The joint dismissal was purely procedural. All seven patents remain legally valid and potentially enforceable against parties other than IBM.
The complaint accused a broad range of IBM blockchain products, including IBM Blockchain Platform (multiple versions and deployment environments), IBM Food Trust, IBM Blockchain World Wire, IBM Digital Health Pass, IBM Blockchain Transparent Supply, and IBM Blockchain on Bluemix. This coverage of IBM’s full blockchain commercial portfolio suggests broad claim-mapping across the Hyperledger Fabric stack.
Monitor blockchain patent enforcement risk before it reaches your product team
The seven Pardalis patents remain enforceable against non-IBM targets with no invalidity ruling on record. Use PatSnap Eureka to run FTO analysis on your blockchain architecture and set portfolio watch alerts for Pardalis continuation filings.
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