Adaptive Avenue v. Saks Fifth Avenue: Web UI Patents Settled in 131 Days
Adaptive Avenue Associates filed suit against Saks Fifth Avenue in the Illinois Southern District Court, asserting two web interface patents against saksfifthavenue.com. The parties reached an agreement in principle before any substantive merits proceedings, resolving all claims in just 131 days — a timeline consistent with early-stage settlement pressure.
Early settlement signals pre-litigation pressure on luxury e-commerce IP
Adaptive Avenue Associates, Inc. filed suit against Saks Fifth Avenue, LLC on 17 May 2024 in the U.S. District Court for the Southern District of Illinois before Judge Steven C. Seeger. The complaint alleged infringement of two patents — US7171629B2 and US7428707B2 — directed at web interface and adaptive UI technology, with the accused instrumentality identified as the saksfifthavenue.com website.
The case closed on 25 September 2024 after the parties jointly moved to stay all unreached deadlines for 30 days, citing an agreement in principle covering all matters in controversy. The court subsequently dismissed the action without prejudice, a termination basis that preserves Adaptive Avenue’s ability to refile if the written settlement agreement is not consummated or later breached — a notable caveat for Saks Fifth Avenue.
The 131-day resolution is notably swift and suggests the parties likely engaged in settlement discussions at or shortly after service of process, bypassing claim construction and discovery entirely. The absence of any substantive rulings leaves the validity and scope of both asserted patents legally untested. The confidential settlement terms mean the public record is silent on any licensing royalty, lump-sum payment, or ongoing covenants exchanged between the parties.
Filing to Dismissed without Prejudice in 131 days
131 days — resolved well before typical district court trial schedule
Dismissed without prejudice: what the settlement exit means for both sides
Without-prejudice dismissal leaves the door open to refile
A dismissal without prejudice does not resolve the underlying merits. Adaptive Avenue retains the right to refile the same claims if the finalized settlement agreement fails, is breached, or is disputed. For Saks Fifth Avenue, the risk does not fully extinguish at dismissal — it depends on the binding force of the written settlement and any release language negotiated. This structure is common in pre-trial patent settlements where the parties need time to formalize terms.
Refiling risk retainedThe public record is silent on whether this is truly final
A dismissal with prejudice would permanently bar refiling. Here, the court dismissed without prejudice, meaning the case can theoretically return. In practice, when settlement agreements are executed and include broad mutual releases, refiling becomes commercially unlikely — but the public docket does not confirm that the written agreement was ever finalized or what its terms contained. Practitioners should not treat this as equivalent to a with-prejudice exit.
Settlement terms undisclosedAdaptive Avenue exits with untested patents still in force
Neither US7171629B2 nor US7428707B2 faced a validity challenge, claim construction ruling, or IPR petition in this proceeding. Adaptive Avenue’s patent portfolio emerges from this litigation fully intact and legally untested. If a licensing payment was secured — as the agreement in principle suggests — the entity may be positioned to assert the same patents against other e-commerce operators without an adverse precedent on record.
Patents legally untestedLuxury e-commerce firms face recurring adaptive UI patent risk
The assertion of adaptive/responsive web interface patents against a major luxury retailer’s .com domain is consistent with a broader pattern of web UI patent licensing campaigns targeting e-commerce operators. With no invalidity ruling and no claim construction to narrow scope, US7171629B2 and US7428707B2 remain available weapons. Other retailers operating comparable adaptive web interfaces should assess their exposure before receiving a demand letter.
Sector-wide licensing riskFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Adaptive Avenue Associates, Inc. | Company | Web interface IP licensing entity — holder of US7171629B2 and US7428707B2Search in Eureka ↗ |
| Defendant | Saks Fifth Avenue, LLC | Company | Saks Fifth Avenue, LLC — luxury omnichannel retailer operating saksfifthavenue.comSearch in Eureka ↗ |
| Plaintiff counsel | David Randolph Bennett | Attorney | Counsel for Adaptive Avenue Associates, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Steven G. Kalberg | Attorney | Counsel for Adaptive Avenue Associates, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Direction IP law | Law Firm | Representing Adaptive Avenue Associates, Inc.Search in Eureka ↗ |
| Defendant counsel | Jason Phillip Greenhut | Attorney | Counsel for Saks Fifth Avenue, LLCSearch in Eureka ↗ |
| Defendant counsel | Michael J. Zinna | Attorney | Counsel for Saks Fifth Avenue, LLCSearch in Eureka ↗ |
| Defendant counsel | Vincent Ferraro | Attorney | Counsel for Saks Fifth Avenue, LLCSearch in Eureka ↗ |
| Defendant law firm | Kelley Drye & Warren LLP | Law Firm | Representing Saks Fifth Avenue, LLCSearch in Eureka ↗ |
| Defendant law firm | Ward and Zinna, LLC | Law Firm | Representing Saks Fifth Avenue, LLCSearch in Eureka ↗ |
| Presiding judge | Judge Steven C. Seeger | Judge | Illinois Southern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The joint motion language — ‘agreement in principle has been reached that settles all matters in controversy’ — is significant because it indicates the settlement was reached before a written agreement was executed, creating a brief window of legal uncertainty. The without-prejudice dismissal that followed is procedurally protective for the plaintiff: if the deal collapsed, the case could resume. No substantive patent law findings were made, and neither patent was adjudicated on validity or infringement — meaning the public record provides no guidance on claim scope.
US7171629B2 & US7428707B2 — Adaptive web interface technology
US7171629B2 (application no. 10/014929) and US7428707B2 (application no. 10/698332) are U.S. utility patents directed at adaptive web user interface technology — broadly covering how websites dynamically present and adapt content or navigation to users. Both patents are granted B2 publications, indicating they issued after examination with amended claims. The application numbers suggest filing in the early-to-mid 2000s, placing them in the foundational era of commercial web UI development.
These patents carry strategic weight in the e-commerce sector because adaptive and responsive web design is now ubiquitous — virtually every major retail website employs some form of dynamic interface logic. Patents with broad claims in this domain can be asserted against a wide range of operators. The assertion against saksfifthavenue.com suggests the patent holder believes the claims read on standard modern e-commerce UI implementations. With no adverse claim construction ruling on record, the enforceable scope of these patents remains commercially uncertain and potentially broad.
Should your web platform team run an FTO against US7171629B2?
Any company operating a consumer-facing website with adaptive, responsive, or dynamically personalized UI elements should consider a freedom-to-operate review against US7171629B2 and US7428707B2. This is particularly relevant for e-commerce platforms, digital retail operators, and SaaS companies whose products include web interfaces that adjust layout or content based on user context, device, or behavior — the precise technology implicated in this case.
PatSnap Eureka’s FTO Search Agent allows IP and R&D teams to map their product architecture against the claim language of both patents, identify prior art that could support an IPR petition, and surface related continuation or family patents that may extend the assertion risk. Running a proactive FTO before receiving a demand letter is significantly cheaper and more strategically effective than responding to litigation — as this 131-day case demonstrates.
Run a freedom-to-operate analysis on US7171629B2 to assess your product’s exposure
Run FTO in Eureka →Similar web UI and adaptive interface patent cases in U.S. district courts
Cases involving adaptive web interface patents asserted in U.S. district courts against e-commerce operators — compare claim scope, venue, and resolution timelines.
What this case signals for the e-commerce and web UI IP landscape
A 131-day settlement without any merits ruling keeps both patents viable and the licensing calculus opaque for the wider retail sector.
Pre-trial settlements validate rather than resolve web UI patent risk
When patent holders settle before claim construction, the asserted patents remain unchallenged in scope and validity. For e-commerce operators, this means the threat profile of US7171629B2 and US7428707B2 is unchanged. Retailers relying on adaptive or responsive website architectures should treat this settlement as a signal to audit their technology stack, not a signal that the risk has passed.
Without-prejudice dismissal is a weaker shield than defendants may assume
A dismissal without prejudice gives Saks Fifth Avenue no preclusive protection if the settlement agreement is disputed or inadequately drafted. In-house counsel at defendant companies should confirm that any corresponding settlement agreement contains an express covenant not to sue, a broad patent release, and ideally a mechanism for converting to with-prejudice dismissal upon payment or completion of obligations.
Adaptive v Saks — key questions answered
Adaptive Avenue Associates asserted two patents: US7171629B2 and US7428707B2. Both are directed at adaptive web user interface technology. The accused product was the saksfifthavenue.com website. Neither patent was adjudicated on validity or infringement — the case settled before any substantive rulings.
The case was dismissed without prejudice. The joint motion stated that an agreement in principle had been reached, and the dismissal was entered to allow time to finalize the written settlement and prepare dismissal papers. A without-prejudice dismissal preserves Adaptive Avenue’s right to refile if the settlement is not consummated or is later breached.
The case lasted 131 days, from filing on 17 May 2024 to closure on 25 September 2024. This resolution timeline is notably swift and suggests the parties engaged in settlement discussions early, likely bypassing claim construction, discovery, and any substantive motion practice entirely.
No. The court made no substantive rulings on validity, infringement, or claim scope in this case. The action was resolved by a joint motion to stay followed by a without-prejudice dismissal. Both patents therefore emerge from this litigation legally untested, with their full claim scope remaining available for future enforcement against other defendants.
The case was filed in the U.S. District Court for the Southern District of Illinois and assigned to Judge Steven C. Seeger under case number 1:24-cv-04092. Plaintiff was represented by Direction IP Law; Saks Fifth Avenue was represented by Kelley Drye & Warren LLP and Ward and Zinna, LLC.
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