Ameranth v. Hilton Worldwide: Federal Circuit Affirms — 512-Day Appeal
Ameranth, Inc. appealed against Hilton Worldwide Holdings, Inc. asserting four patents covering hospitality information management, synchronous communications with menu generation, and internet online ordering. A three-judge Federal Circuit panel — Dyk, Prost, and Hughes — issued a per curiam affirmance after 512 days.
Ameranth's hospitality software appeal ends at Federal Circuit
Ameranth, Inc. brought this infringement action against Hilton Worldwide Holdings, Inc. asserting four United States patents — US8146077B2, US6871325B1, US8738449B1, and US6384850B1 — covering information management and synchronous communications systems with menu generation, handwriting and voice modification of orders, and internet online order methods and apparatus. The case was filed on 18 April 2022 before the Court of Appeals for the Federal Circuit (Case No. 22-1672).
The Federal Circuit panel of Circuit Judges Dyk, Prost, and Hughes issued a per curiam order on 12 September 2023, stating: 'AFFIRMED.' The recorded basis of termination in the docket is 'Appeal Dismissed.' The affirmance means the court found no reversible error in the decision under review, leaving that lower-court outcome intact. The specific terms and the nature of the underlying decision are not further detailed in the available record.
The case ran for 512 days before resolution. Per curiam dispositions at the Federal Circuit — without a written opinion — suggest the panel found the appeal presented no novel or unsettled legal question warranting extended analysis. What further proceedings, if any, Ameranth may pursue beyond this affirmance is not disclosed in the public record.
See Complete Case & Patent Analysis →Filing to Appeal Dismissed in 512 days
512 days from filing to Federal Circuit disposition — consistent with a standard briefed appeal
US8146077B2 — Hospitality information management and menu generation
Any company developing or licensing information management systems, menu-generation platforms, online ordering applications, or synchronous communications tools for the hospitality sector — hotels, restaurants, catering, or venue management — should consider a freedom-to-operate review against this patent family. The Federal Circuit's affirmance in this case does not extinguish the underlying patents; it resolves a specific appeal. Related continuations and family members may remain active.
Official order — verbatim text
The Federal Circuit's per curiam order — 'AFFIRMED' — is the court's most concise form of disposition, indicating the three-judge panel (Dyk, Prost, Hughes) found no reversible error in the decision under review on the infringement claims. A per curiam ruling issues without a named author and typically without extended legal analysis, suggesting the appeal raised no novel or unsettled question of patent law. The docket's recorded basis of termination is 'Appeal Dismissed'; the order text states 'AFFIRMED.' Both are stated as recorded; the reader should consult the full docket for further procedural context.
Federal Circuit affirms: what the ruling means for both parties
Per curiam affirmance: no reversible error found below
An affirmance at the Federal Circuit means the three-judge panel found no reversible error in the lower-court decision it reviewed. The court does not reweigh the facts; it evaluates whether legal standards were correctly applied. A per curiam order — issued without a named author and without a written opinion — signals the panel considered the outcome clear enough not to require extended legal reasoning.
Lower decision standsAmeranth's appeal fails to disturb the lower ruling
For Ameranth, the affirmance means its appellate challenge was unsuccessful. The lower-court outcome remains in force against it. Having exhausted this level of appeal on these four patents, Ameranth's options for further review are limited to a petition for rehearing en banc at the Federal Circuit or a petition for certiorari to the Supreme Court — both highly discretionary proceedings.
Appellate challenge unsuccessfulHilton secures affirmance of the lower-court decision
For Hilton Worldwide Holdings, the affirmance confirms that the decision in its favour at the court below will not be disturbed by this appeal. The per curiam character of the ruling suggests the Federal Circuit found no serious legal question running in Ameranth's favour. This significantly raises the bar for any continued patent enforcement effort by Ameranth against Hilton on these four patents.
Lower ruling confirmedHospitality-sector patent risk landscape post-affirmance
The Federal Circuit's per curiam affirmance reinforces the outcome against Ameranth's hospitality information management and online ordering patents. For hotel technology vendors, PMS integrators, and online booking platform operators, this suggests these particular patent claims did not withstand appellate scrutiny in this dispute. Companies in the hospitality software and digital ordering space should nevertheless monitor Ameranth's broader patent portfolio for active or related assertions.
Hospitality software IP riskFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Ameranth, Inc. | Company | /Search in Eureka ↗ |
| Defendant | Hilton Worldwide Holdings, Inc. | Company | /Search in Eureka ↗ |
| Plaintiff counsel | Richard C. Weinblatt | Attorney | Counsel for Ameranth, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Stamoulis & Weinblatt LLC | Law Firm | Representing Ameranth, Inc.Search in Eureka ↗ |
| Defendant counsel | Erin Gibson | Attorney | Counsel for Hilton Worldwide Holdings, Inc.Search in Eureka ↗ |
| Defendant law firm | DLA Piper US LLP | Law Firm | Representing Hilton Worldwide Holdings, Inc.Search in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Court of Appeals for the Federal CircuitSearch in Eureka ↗ |
R&D signals in the hospitality software and ordering systems space
Forward-looking patent and innovation intelligence derived from Ameranth's portfolio and the hospitality ordering technology landscape implicated by Case No. 22-1672.
Ameranth's filing activity in hospitality software
Ameranth's asserted patents span multiple application generations (filing years reflected in App. Nos. 09/, 10/, 11/, and 13/), suggesting a sustained prosecution strategy in the information management and menu generation space. Tracking active continuations and pending applications from this family can reveal where Ameranth may be building claim scope for future enforcement activity.
Portfolio monitoringFiling trends in online ordering and POS integration patents
Internet-based online order methods and synchronous POS communications have attracted significant patent filing activity from both established hotel technology vendors and software startups. Mapping recent filings in this space can identify which companies are actively building defensive or offensive patent positions around the same functional claims at issue in the Ameranth v. Hilton dispute.
Filing trend analysisHilton Worldwide's patent position in hospitality technology
Hilton Worldwide Holdings' patent portfolio in digital hospitality services — including mobile check-in, property management, and guest communication systems — reflects its own R&D investment in the space that overlaps with Ameranth's asserted claims. Understanding Hilton's filed IP can reveal both defensive assets and potential cross-licensing leverage in adjacent hospitality software disputes.
Competitor IP postureDesign-around opportunities in menu generation and ordering systems
The claim scope of the Ameranth patent family centres on specific implementations of synchronous menu generation, voice and handwriting order modification, and internet ordering workflows. Identifying the precise claim boundaries — and areas of functional equivalence that fall outside them — can guide R&D teams toward design-around architectures for next-generation hospitality ordering and PMS integration products.
Design-around R&DSimilar Federal Circuit appeals in hospitality and ordering software patents
Cases involving information management, menu generation, and online ordering patent assertions at the Federal Circuit — covering comparable hospitality software and POS technology disputes.
What this case signals for the hospitality software IP landscape
A per curiam Federal Circuit affirmance against a serial patent licensor carries specific signals for hospitality technology operators and their IP counsel.
Per curiam affirmance raises the bar for further Ameranth challenges
When the Federal Circuit affirms without a written opinion, it signals the panel found the appeal legally clear-cut. For Hilton and similarly positioned defendants, this is a strong precedent-level signal. Companies receiving demand letters from Ameranth on these four patents should factor this outcome into their litigation risk calculus.
Hospitality tech vendors should audit exposure to Ameranth's portfolio
Ameranth holds multiple patents in the information management, menu generation, and online ordering space. The Federal Circuit outcome here is specific to this appeal, but Ameranth's broader portfolio may still present enforcement risk in adjacent product categories. Proactive FTO analysis against the asserted patents — and related family members — remains advisable for hotel technology and POS system vendors.
Ameranth v Hilton — key questions answered
The Federal Circuit issued a per curiam affirmance on 12 September 2023, with Circuit Judges Dyk, Prost, and Hughes finding no reversible error in the lower-court decision. The recorded basis of termination on the docket is 'Appeal Dismissed.' The specific nature of the underlying lower-court decision is not further detailed in the available record.
Ameranth asserted four patents: US8146077B2 (App. No. 11/112990), US6871325B1 (App. No. 10/015729), US8738449B1 (App. No. 13/592199), and US6384850B1 (App. No. 09/400413). The patents cover information management and synchronous communications systems with menu generation, handwriting and voice modification of orders, and internet online ordering methods and apparatus.
A per curiam affirmance is a ruling issued in the name of the court collectively, without identifying a single authoring judge, and typically without an extended written opinion. It signals the panel found the appeal legally straightforward — no reversible error in the lower-court decision, and no novel question of patent law warranting a full opinion. The lower-court outcome remains in force.
The affirmance resolves this specific appeal against Hilton and leaves the lower-court outcome intact. It does not necessarily extinguish the patents themselves. Ameranth's options for further review in this proceeding are limited to a petition for rehearing en banc or certiorari to the Supreme Court. Whether related family patents remain active and enforceable against other parties is not determinable from the public record of this case alone.
Ameranth was represented by Stamoulis & Weinblatt LLC, with Richard C. Weinblatt named as plaintiff's agent. Hilton Worldwide Holdings was represented by DLA Piper US LLP, with Erin Gibson named as defendant's agent.
This page is compiled from public court dockets and third-party patent and litigation data via PatSnap Eureka, and is provided for general informational purposes only. The information shown — including party names, patent and application numbers, dates, case status, outcomes, and any analysis — may be incomplete, may not reflect the most recent filings or legal status, and may contain errors or omissions. Verify all details against official court records (for example, PACER) and the relevant patent office before relying on them.
Nothing on this page constitutes legal advice or a legal opinion on the validity, infringement, enforceability, or scope of any patent or case, and no attorney‑client relationship is created by its use. Any description of an outcome (such as a dismissal, settlement, or consent judgment) is a general summary, not a legal determination. All patents, trademarks, and company or law‑firm names are the property of their respective owners. PatSnap makes no warranty as to the accuracy or completeness of this content and disclaims, to the fullest extent permitted by law, all liability for reliance on it. For advice on a specific matter, consult qualified legal counsel.
PatSnap Eureka searches patents and litigation data to answer instantly.