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IBM v. Rakuten Patent Litigation — E-Commerce IP Dispute | PatSnap
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Case ID1:21-cv-00461
FiledMar 2021
ClosedJun 2024
Patent Litigation

IBM v. Rakuten: Five-Patent E-Commerce Suit Dismissed With Prejudice After 1,180 Days

IBM filed suit against Rakuten and its Ebates affiliates in the Delaware District Court, asserting five patents covering e-commerce, web personalisation, and online transaction technologies against Rakuten’s website and mobile apps. After 1,180 days of litigation, the parties jointly stipulated to dismiss all claims and counterclaims with prejudice — permanently closing every avenue of re-litigation on these patents against these defendants.

Resolution time
1180days
1,180 days in litigation — roughly 3.2 years, above the median for multi-patent Delaware IP cases
Patents asserted
5
US6785676B2 and 4 further patents asserted covering e-commerce and web technologies
Outcome
Dismissed with Prejudice
Stipulated dismissal with prejudice — all claims permanently extinguished, no re-filing permitted
Cost ruling
Each Side Bears Own Costs
No fee-shifting awarded; each party absorbs its own attorneys’ fees and litigation costs
Published by PatSnap Insights Team · Verified by PatSnap Eureka Data
Case overview

IBM’s five-patent e-commerce assault on Rakuten ends by mutual stipulation

On 29 March 2021, International Business Machines Corporation filed suit in the United States District Court for the District of Delaware against Rakuten, Inc. and a cluster of affiliated entities — including Ebates Performance Marketing, Inc. (trading as Rakuten Rewards), Rakuten Commerce LLC, Rakuten USA Inc., and Ebates Inc. IBM asserted five issued US patents — US6785676B2, US7543234B2, US7072849B1, US7631346B2, and US7076443B1 — against Rakuten’s website and mobile applications, bringing an infringement action before Judge Gregory B. Williams.

The case closed on 21 June 2024 when the parties filed a joint Rule 41(a)(1)(A)(ii) stipulation dismissing all claims and counterclaims with prejudice. That mechanism — a bilateral stipulated dismissal — requires no court order and takes effect immediately upon filing. The with-prejudice designation is commercially significant: IBM cannot reassert any of these five patents against the named Rakuten defendants on the same accused products in any future proceeding. Each side agreed to bear its own costs, expenses, and attorneys’ fees, suggesting no clear financial concession was recorded in the public record.

The 1,180-day duration — spanning from filing through fact discovery to dismissal — suggests the parties reached resolution only after substantial litigation investment, consistent with a negotiated outcome rather than an early nuisance settlement. The with-prejudice terms and mutual cost-bearing are typical hallmarks of a confidential commercial settlement, though no settlement agreement is reflected in the public docket. What drove final resolution — licensing terms, cross-licensing, or a strategic business decision — remains unknown from the available record.

Case at a glance
Case no.1:21-cv-00461
DefendantRakuten
CourtDelaware
JudgeGregory B. Williams
FiledMarch 29, 2021
ClosedJune 21, 2024
Duration1180 days
OutcomeDismissed with Prejudice
Verdict causeInfringement Action
BasisDismissed with Prejudice
Prior Art Intelligence
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Case data sourced from PACER / Delaware District Court via PatSnap Eureka Litigation Intelligence Explore similar cases ↗
Case timeline

Filing to Dismissed with Prejudice in 1180 days

1,180 days in litigation — roughly 3.2 years, above the median for multi-patent Delaware IP cases

Case timeline: Complaint filed MAR 29 2021, NOV–DEC — 1180 days total Horizontal timeline showing the three key events in International Business Machines, Corp. v Rakuten from filing to resolution. Source: PACER, Delaware District Court. MAR 29 2021 Complaint filed Pre-trial proceedings JUN 21 2024 Dismissed with Prejudice 1180 DAYS TOTAL
Dismissal terms

Dismissed with prejudice: what the stipulation means for both parties

Legal mechanism

Rule 41(a)(1)(A)(ii): bilateral stipulated dismissal, no court order needed

A Rule 41(a)(1)(A)(ii) dismissal is filed by the parties jointly and takes immediate effect without judicial approval. The with-prejudice designation converts what would otherwise be a procedural exit into a final adjudication on the merits for claim-preclusion purposes. Neither IBM nor Rakuten can re-litigate these specific claims in a new action — the dismissal functions as a permanent bar.

Permanent bar on re-litigation
Patent holder outcome

IBM surrenders future enforcement against Rakuten on all five patents

By stipulating to dismissal with prejudice, IBM permanently relinquishes its right to assert US6785676B2, US7543234B2, US7072849B1, US7631346B2, and US7076443B1 against the named Rakuten entities on these accused products. The five patents remain enforceable against other parties — only Rakuten and its named affiliates are shielded. This outcome is consistent with IBM securing a confidential licence or business resolution rather than abandoning the patents entirely.

Patents intact vs. third parties
Defendant outcome

Rakuten obtains permanent immunity — but at undisclosed commercial cost

The with-prejudice dismissal gives Rakuten, Ebates Performance Marketing, Rakuten Commerce, Rakuten USA, and Ebates Inc. a permanent shield against IBM’s five asserted patents on these products. The mutual cost-bearing clause means no fee award was recorded publicly. However, the 1,180-day duration and the absence of an early resolution strongly suggest a financial or licensing component exists in a confidential side agreement that is not visible in the court record.

Permanent IP shield secured
Commercial implications

IBM’s e-commerce portfolio remains active — other platforms remain exposed

This dismissal does not invalidate or limit any of IBM’s five patents. Competing e-commerce, cashback, and rewards platforms that were not parties to this action — and that deploy similar web personalisation, transaction processing, or recommendation technologies — remain potentially exposed to the same patent claims. The resolution signals IBM continues to monetise this portfolio through enforcement and licensing, making FTO analysis against these patents commercially prudent for any operator in adjacent e-commerce verticals.

Third-party FTO risk persists
Legal analysis based on PACER docket records for case 1:21-cv-00461 and PatSnap Eureka litigation intelligence Search PatSnap Eureka ↗
Parties and representation

Full party and counsel information

RoleNameTypeDetail
PlaintiffInternational Business Machines, Corp.CompanyGlobal technology company — holder of US6785676B2 and four further e-commerce patentsSearch in Eureka ↗
DefendantRakutenIndividualRakuten Inc. and affiliates — operator of e-commerce, cashback, and rewards platforms including Ebates/Rakuten RewardsSearch in Eureka ↗
Co-DefendantEbates Performance Marketing, Inc.CompanySearch in Eureka ↗
Co-DefendantRakuten Commerce, LLCCompanySearch in Eureka ↗
Co-DefendantRakuten USA, Inc.CompanySearch in Eureka ↗
Co-DefendantEbates Inc.CompanySearch in Eureka ↗
Plaintiff counselAmy I. WannAttorneyCounsel for International Business Machines, Corp.Search in Eureka ↗
Plaintiff counselAndrew L. BrownAttorneyCounsel for International Business Machines, Corp.Search in Eureka ↗
Plaintiff counselBenjamin J. RoddAttorneyCounsel for International Business Machines, Corp.Search in Eureka ↗
Plaintiff counselBindu Ann George PalapuraAttorneyCounsel for International Business Machines, Corp.Search in Eureka ↗
Plaintiff counselBrian D. MattyAttorneyCounsel for International Business Machines, Corp.Search in Eureka ↗
Plaintiff counselCaitrianne FeddelerAttorneyCounsel for International Business Machines, Corp.Search in Eureka ↗
Plaintiff counselDavid Ellis MooreAttorneyCounsel for International Business Machines, Corp.Search in Eureka ↗
Plaintiff counselEliyahu BalsamAttorneyCounsel for International Business Machines, Corp.Search in Eureka ↗
Plaintiff counselJohn DaoAttorneyCounsel for International Business Machines, Corp.Search in Eureka ↗
Plaintiff counselJohn M. DesmaraisAttorneyCounsel for International Business Machines, Corp.Search in Eureka ↗
Plaintiff counselJonas R. McDavitAttorneyCounsel for International Business Machines, Corp.Search in Eureka ↗
Plaintiff counselJordan N. MalzAttorneyCounsel for International Business Machines, Corp.Search in Eureka ↗
Plaintiff counselJoseph D. Farris , IIIAttorneyCounsel for International Business Machines, Corp.Search in Eureka ↗
Plaintiff counselJun TongAttorneyCounsel for International Business Machines, Corp.Search in Eureka ↗
Plaintiff counselKarim Z. OussayefAttorneyCounsel for International Business Machines, Corp.Search in Eureka ↗
Plaintiff counselKerri-Ann LimbeekAttorneyCounsel for International Business Machines, Corp.Search in Eureka ↗
Plaintiff counselKyle CurryAttorneyCounsel for International Business Machines, Corp.Search in Eureka ↗
Plaintiff counselLindsey E. MillerAttorneyCounsel for International Business Machines, Corp.Search in Eureka ↗
Plaintiff counselMichael RhodesAttorneyCounsel for International Business Machines, Corp.Search in Eureka ↗
Plaintiff counselMichael WuesteAttorneyCounsel for International Business Machines, Corp.Search in Eureka ↗
Plaintiff counselStephanie E. O’ByrneAttorneyCounsel for International Business Machines, Corp.Search in Eureka ↗
Plaintiff counselVieth WilliamAttorneyCounsel for International Business Machines, Corp.Search in Eureka ↗
Plaintiff counselWilliam YauAttorneyCounsel for International Business Machines, Corp.Search in Eureka ↗
Plaintiff law firmDLA Piper LLP (US)Law FirmRepresenting International Business Machines, Corp.Search in Eureka ↗
Plaintiff law firmPotter, Anderson & Corroon LLPLaw FirmRepresenting International Business Machines, Corp.Search in Eureka ↗
Defendant counselBenjamin J. SchladweilerAttorneyCounsel for RakutenSearch in Eureka ↗
Defendant counselJonathan PresvelisAttorneyCounsel for RakutenSearch in Eureka ↗
Defendant counselMaja ShermanAttorneyCounsel for RakutenSearch in Eureka ↗
Defendant counselMark BhuptaniAttorneyCounsel for RakutenSearch in Eureka ↗
Defendant counselVimal M. KapadiaAttorneyCounsel for RakutenSearch in Eureka ↗
Defendant law firmGreenberg Traurig LLPLaw FirmRepresenting RakutenSearch in Eureka ↗
Presiding judgeJudge Gregory B. WilliamsJudgeDelaware District CourtSearch in Eureka ↗
Official verdict

Official order — verbatim text

“Pursuant to Rule 41(a)(1)(A)(ii) of the Federal Rules of Civil Procedure, Plaintiff International Business Machines Corporation and Defendants Rakuten, Inc. and Ebates Performance Marketing, Inc. dba Rakuten Rewards (collectively, “the Parties”) hereby stipulate that all claims and counterclaims in the above-captioned action are hereby dismissed with prejudice. Each side shall bear its own costs, expenses, and attorneys’ fees.”
Source: PACER Docket, Case 1:21-cv-00461, Delaware District Court

The stipulation invokes Rule 41(a)(1)(A)(ii), the bilateral dismissal mechanism that requires no court order and takes effect on filing. The with-prejudice designation is the legally operative term: it triggers claim preclusion, permanently barring IBM from reasserting any of the five patents against the named Rakuten entities on the accused products. The mutual cost-bearing clause — ‘each side shall bear its own costs’ — is standard in confidential settlements and does not imply parity of litigation strength. No merits ruling was issued; validity and infringement of the five patents remain unadjudicated.

PACER case 1:21-cv-00461 · Public docket record Explore in Eureka ↗
Patent at issue

US6785676B2 and four further IBM e-commerce and web technology patents

Publication No.US6785676B2
Application No.US09/778139
Patent details
ProductE-commerce data management and personalisation systems
Cited in actionMarch 29, 2021

Publication No.US7543234B2
Application No.US11/173041
Patent details
ProductWeb-based user interface and online transaction processing methods
Cited in actionMarch 29, 2021

Publication No.US7072849B1
Application No.US08/158025
Patent details
ProductOnline store navigation and product recommendation systems
Cited in actionMarch 29, 2021

Publication No.US7631346B2
Application No.US11/097587
Patent details
ProductWeb application session management and user interaction tracking
Cited in actionMarch 29, 2021

Publication No.US7076443B1
Application No.US09/583516
Patent details
ProductE-commerce transaction processing and order management methods
Cited in actionMarch 29, 2021

The five asserted patents — US6785676B2, US7543234B2, US7072849B1, US7631346B2, and US7076443B1 — originate from application filings spanning the late 1990s through mid-2000s, a foundational period for commercial internet and e-commerce infrastructure. The portfolio covers a range of web and transaction technologies relevant to modern e-commerce deployments, including online personalisation, user interaction management, web navigation, session tracking, and order processing. IBM’s assertion of these patents against Rakuten’s website and mobile applications reflects IBM’s long-standing strategy of extracting commercial value from its internet-era patent estate.

For the e-commerce sector, IBM’s internet-era patents represent a persistent and well-documented licensing risk. IBM has historically pursued a broad enforcement and licensing programme across technology companies, and this five-patent assertion against Rakuten’s cashback and rewards platform demonstrates the portfolio’s reach into modern consumer-facing applications. Competitors operating personalisation engines, loyalty programmes, recommendation systems, or mobile commerce features should treat IBM’s web technology portfolio as a live exposure — particularly given this case’s resolution without any validity finding that could have narrowed IBM’s claims.

Patent data sourced from USPTO via PatSnap Eureka patent database Search patent records in Eureka ↗
Freedom to operate

Should you run an FTO analysis against IBM’s e-commerce patent portfolio?

Any company operating an e-commerce platform, rewards programme, cashback service, or personalised shopping application should consider running a freedom-to-operate analysis against IBM’s web and transaction patent portfolio. The five patents asserted here — covering application dates from the late 1990s — were deployed against a major consumer internet platform’s website and mobile apps. This case confirms IBM continues to enforce this estate in the current decade, making FTO analysis commercially essential for platforms with similar feature sets.

PatSnap Eureka’s FTO Search Agent allows R&D and legal teams to map claim scope across all five asserted patents, identify design-around opportunities, and flag prior art that may bear on validity — work that remains relevant since no invalidity determination was issued in this case. Eureka can also surface related IBM continuation and divisional applications that may present ongoing risk in adjacent claim spaces, giving product and IP teams a complete picture before a demand letter arrives.

PatSnap Eureka FTO Search

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Related litigation

Similar IBM e-commerce patent cases in Delaware and federal courts

Cases involving IBM’s internet-era e-commerce and web technology patents in the Delaware District Court and comparable federal venues with multi-patent assertion strategies.

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Strategic implications

What IBM v. Rakuten signals for the e-commerce patent licensing landscape

IBM’s enforcement of legacy web and e-commerce patents against a major consumer platform reflects a sustained monetisation strategy with broad sector implications.

IBM’s legacy web patents remain live enforcement tools against e-commerce platforms

This case confirms IBM actively enforces patents with application dates spanning the mid-1990s to mid-2000s across modern e-commerce and mobile app deployments. Platforms operating cashback, rewards, personalisation, or online transaction features should treat IBM’s legacy portfolio as a live litigation risk — not a dormant legacy asset.

With-prejudice + own costs strongly suggests a confidential commercial resolution

The combination of a 1,180-day litigation arc, with-prejudice dismissal, and mutual cost-bearing is the standard fingerprint of a negotiated settlement or licence agreement. Parties resolved after investing heavily in discovery, suggesting IBM’s patents withstood early invalidity pressure and Rakuten chose commercial resolution over continued litigation risk.

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Portfolio mapping signalsDelaware venue strategyIBM licensing risk model
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Frequently asked questions

International v Rakuten — key questions answered

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Track IBM’s e-commerce patent enforcement before the next demand letter

PatSnap Eureka lets IP and product teams run FTO searches across IBM’s full web and e-commerce portfolio, monitor new filings, and track enforcement patterns in real time. Five patents were asserted here — map the full estate before your platform is next.

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