Ameranth v. Starwood Hotels: Federal Circuit Appeal on Hospitality Information Management Patents
Ameranth, Inc. brought a patent infringement appeal against Starwood Hotels & Resorts Worldwide, Inc. at the Federal Circuit, asserting three patents covering information management and synchronous communications systems with menu generation. A per curiam panel of three circuit judges — Dyk, Prost, and Hughes — issued a one-word disposition after 515 days.
Three hospitality tech patents at the Federal Circuit: per curiam affirmance
Ameranth, Inc. filed this appeal at the U.S. Court of Appeals for the Federal Circuit on 15 April 2022, naming Starwood Hotels & Resorts Worldwide, Inc. as respondent. The case, docketed as No. 22-1666, centres on three U.S. patents — US8146077B2, US6871325B1, and US6384850B1 — each directed to information management and synchronous communications systems with menu generation, including handwriting and voice modification of orders in the hospitality context.
The recorded basis of termination is 'Appeal Dismissed'; the docket order states that the cause was heard and considered by a per curiam panel of Circuit Judges Dyk, Prost, and Hughes, and that the matter was 'AFFIRMED.' The specific terms and any underlying reasoning are not set out in the available record excerpt beyond that single-word disposition.
The case closed on 12 September 2023 after 515 days. The divergence between the recorded basis of termination ('Appeal Dismissed') and the panel's order ('AFFIRMED') is a matter of public record; what drove each characterisation is not further explained in the available record. No damages quantum, cost award, or remand instruction appears in the available record.
See Complete Case & Patent Analysis →Filing to Appeal Dismissed in 515 days
515 days from filing to close — a relatively compact Federal Circuit appeal timeline
US8146077B2, US6871325B1 & US6384850B1 — Hospitality information management systems


R&D teams and product managers building hospitality ordering platforms, POS integrations, menu management systems, or synchronous communications tools should treat these three Ameranth patents as active FTO targets. The Federal Circuit's affirmance means the patent positions are not presently overturned at appellate level. Hotel technology vendors, online ordering platforms, and restaurant management software providers face the highest direct exposure.
Official order — verbatim text
The per curiam panel order — 'AFFIRMED' — is the full merits disposition recorded in this appeal. At Federal Circuit level, affirmance under the applicable standards of review (de novo for claim construction, substantial evidence for factual findings) means the panel identified no error warranting reversal. The brevity of a per curiam order without a written opinion is consistent with a panel view that existing precedent governed the outcome. The recorded basis of termination is 'Appeal Dismissed'; the order text states 'AFFIRMED' — the available record does not resolve this divergence further.
Federal Circuit affirms: what the ruling means for both parties
What 'AFFIRMED' means at Federal Circuit level
An appellate affirmance signals that the three-judge panel found no reversible error in the decision below. The lower court's or agency's ruling on the asserted claims stands without modification. A per curiam order — issued jointly without attribution to a named author — typically indicates a panel view of the outcome as sufficiently clear to require no extended analysis. The specific legal grounds are not disclosed in the available record.
No reversible error foundAmeranth's appeal does not succeed on the available record
An affirmance at Federal Circuit level leaves the decision below intact. For Ameranth as appellant, this means the relief sought on appeal was not granted. The enforceability of the three asserted patents — US8146077B2, US6871325B1, and US6384850B1 — relative to Starwood is governed by whatever the lower decision determined, which is affirmed. The specific effect on those patent rights is not further described in the available record.
Appeal unsuccessfulStarwood's position preserved at appellate level
As appellee, Starwood Hotels & Resorts benefits from the affirmance in that the outcome below — which Ameranth sought to reverse — stands. A per curiam affirmance at the Federal Circuit raises the bar for any further challenge: en banc review or certiorari to the Supreme Court would be the remaining appellate avenues, both granted only rarely. No further litigation steps are disclosed in the available record.
Lower decision preservedAffirmed Federal Circuit ruling strengthens precedential posture
A Federal Circuit affirmance on patents covering hospitality information management and synchronous communications systems with menu generation is notable for the broader hotel-tech and point-of-sale software sector. Parties working in adjacent spaces — menu generation, order synchronisation, or hospitality workflow software — should note that the patent positions affirmed here remain enforceable. An FTO assessment against these three patents is advisable for developers in this domain.
Enforceable patent positionFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Ameranth, Inc. | Company | /Search in Eureka ↗ |
| Defendant | Starwood Hotels & Resorts Worldwide, 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 | John Guaragna | Attorney | Counsel for Starwood Hotels & Resorts Worldwide, Inc.Search in Eureka ↗ |
| Defendant law firm | DLA Piper US LLP | Law Firm | Representing Starwood Hotels & Resorts Worldwide, 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 information management tech space
Forward-looking patent and innovation signals derived from Ameranth's assertions against Starwood, covering portfolio activity, filing trends, and white-space opportunities in hospitality ordering and synchronisation technology.
Ameranth's hospitality software patent family: scope and depth
Ameranth holds a multi-patent family spanning menu generation, order synchronisation, and handwriting/voice order modification — all filed across multiple application vintages. Tracking Ameranth's continuation and continuation-in-part activity will reveal whether claim scope is expanding into mobile, cloud-based, or AI-assisted ordering workflows that could affect next-generation hospitality platforms.
Portfolio depth signalFiling trends in synchronous hospitality ordering and POS systems
The broader patent landscape around synchronous communications, menu generation, and real-time order management in hospitality has been active for two decades. Monitoring recent filings in this space — particularly from hotel chains, POS vendors, and cloud restaurant platforms — can identify whether competitors are building design-arounds or claiming adjacent territory outside the Ameranth family.
Landscape filing trendStarwood/Marriott's IP position in hotel technology systems
Starwood Hotels, now part of Marriott International, operates significant proprietary hospitality technology infrastructure. Examining Starwood and Marriott's own patent filings in property management, guest ordering, and communications systems reveals whether they have developed independent IP that could serve as a cross-licensing asset or defensive hedge against future infringement assertions in this domain.
Competitor IP hedgeAdjacent innovation gaps: AI-driven and voice-native ordering systems
The Ameranth patents cover handwriting and voice modification of orders as a distinct claim element. As AI-native voice ordering and LLM-driven menu personalisation emerge, there may be white space beyond the original claim boundaries — particularly in natural language processing interfaces, real-time multi-channel synchronisation, and adaptive menu generation — that innovators can occupy without entering the Ameranth claim footprint.
White-space opportunitySimilar Federal Circuit patent appeals in hospitality and information management tech
Cases involving Federal Circuit appeals on hospitality software, synchronous communications, and menu management patents — comparable in technology domain and appellate posture to Ameranth v. Starwood.
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 Information management and synchronous communications system with menu generation-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.
DecidedAmeranth, Inc.'s broader IP enforcement history
Ameranth, Inc.'s full litigation history covering prior enforcement, licensing activity, and inter partes review proceedings.
Portfolio viewWhat this case signals for the hospitality tech IP landscape
Ameranth's three asserted patents span core hospitality workflow infrastructure — menu generation, synchronisation, and order modification. The Federal Circuit outcome has sector-wide implications.
Ameranth's patent portfolio has broad hospitality software reach
The three asserted patents cover information management, synchronous communications, menu generation, and handwriting/voice order modification — fundamental building blocks of modern hospitality POS and ordering platforms. Any developer or vendor active in this space should audit exposure against this family.
Per curiam affirmances signal settled law — appeals risk is elevated
A per curiam order at the Federal Circuit, without a written opinion, suggests the panel viewed the outcome as clear on existing precedent. For parties contemplating a similar challenge to Ameranth's patents, this signals a high bar for appellate reversal and counsels thorough pre-litigation invalidity analysis.
Starwood's DLA Piper defence strategy — lessons for future respondents
DLA Piper's successful defence of Starwood at Federal Circuit level suggests a robust record was built below. Competitors facing Ameranth assertions in hospitality tech should examine the arguments that sustained affirmance and consider whether analogous prior art or claim construction positions apply to their own exposure.
Ameranth's litigation history across hotel and restaurant tech defendants
Ameranth has pursued infringement actions across multiple hospitality technology defendants. The Federal Circuit's affirmance in this matter against Starwood is one data point in a broader enforcement pattern. IP teams at hotel groups, OTAs, and POS vendors should map Ameranth's full filing activity to assess systemic risk.
Ameranth v Starwood — key questions answered
The Federal Circuit's per curiam panel — comprising Circuit Judges Dyk, Prost, and Hughes — issued an order stating 'AFFIRMED' following hearing. The recorded basis of termination in the docket is 'Appeal Dismissed.' The available record does not further explain the divergence between these two characterisations. The case closed on 12 September 2023 after 515 days.
Ameranth asserted three patents: US8146077B2 (application US11/112990), US6871325B1 (application US10/015729), and US6384850B1 (application US09/400413). All three relate to information management and synchronous communications systems with menu generation; US6384850B1 additionally covers handwriting and voice modification of orders.
A per curiam affirmance means the three-judge panel found no reversible error in the decision below, leaving that ruling intact without modification. The brevity of a per curiam order — issued without a named author and without an extended written opinion — is consistent with a panel view that existing precedent governed the outcome. The specific legal grounds are not detailed in the available record excerpt.
The Federal Circuit affirmance means US8146077B2, US6871325B1, and US6384850B1 have not been overturned at appellate level. Developers and vendors active in hospitality ordering, menu generation, synchronous communications, or POS integration should conduct an FTO analysis against these three patents before commercialising products in this domain. The enforceability of these patents relative to third parties beyond Starwood depends on their individual claim scope.
Ameranth was represented by Richard C. Weinblatt of Stamoulis & Weinblatt LLC. Starwood Hotels & Resorts Worldwide was represented by John Guaragna of DLA Piper US LLP. No further details about the representation scope or engagement terms are disclosed in the available record.
Monitor Ameranth's patent family and manage your FTO exposure
The Federal Circuit affirmance keeps Ameranth's three hospitality information management patents in force. Use PatSnap Eureka to run an FTO analysis, track new filings in this family, and receive alerts if enforcement activity extends to your technology space.
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