Swarm Technology v. Amazon: Federal Circuit Affirms US9852004B2 Unpatentable
Swarm Technology LLC appealed a patentability ruling against Amazon.com and Amazon Web Services over US9852004B2, a patent covering dynamically configurable parallel co-processing systems. The Federal Circuit affirmed the unpatentability finding, closing a 676-day appellate proceeding with no path to reinstatement at this level.
Federal Circuit closes Swarm Technology’s parallel-processing patent appeal
Swarm Technology LLC filed this appeal at the Court of Appeals for the Federal Circuit on 24 August 2023, challenging a prior determination that US9852004B2 was unpatentable. The patent, filed under application number US14/340332, protects a system and method for parallel processing using dynamically configurable proactive co-processing cells — technology relevant to distributed and cloud computing architectures. The defendants, Amazon.com Inc. and its subsidiary Amazon Web Services Inc., successfully defended the unpatentability position before the lower tribunal.
On 30 June 2025, the Federal Circuit issued its order affirming the lower decision, recording the basis of termination as Unpatentable. An affirmance at this level means the appellate court found no reversible legal or factual error in the tribunal below. The practical effect is that the claims of US9852004B2 stand cancelled, eliminating Swarm Technology’s ability to enforce the patent against Amazon or any other party on the basis of those claims.
The 676-day duration of the appellate proceeding is longer than the Federal Circuit’s typical resolution window, suggesting the matter may have involved substantive briefing on complex patentability questions — potentially relating to prior art scope or claim construction. The public record does not disclose whether settlement discussions occurred in parallel or whether any claims were severed. Swarm Technology’s options for further review are limited to a petition for en banc rehearing or a certiorari petition to the Supreme Court, both of which face a high bar.
Filing to Unpatentable in 676 days
676 days — above the Federal Circuit’s typical 12–18 month appellate timeline
Federal Circuit affirms: what the unpatentability ruling means for both parties
Affirmance means the lower decision stands in full
When the Federal Circuit affirms, it concludes that the tribunal below committed no reversible error — whether legal or factual. The unpatentability determination is therefore final at this appellate level. The claims of US9852004B2 are cancelled and cannot be revived through further prosecution of the same application. Swarm Technology would need to seek en banc rehearing or Supreme Court certiorari to disturb this outcome, both of which are rarely granted.
No reversible error foundSwarm Technology loses enforceability of its core parallel-processing patent
The affirmance extinguishes Swarm Technology’s ability to assert US9852004B2 against Amazon or any third party. Any licensing programme built on this patent is effectively nullified. If Swarm Technology holds continuation or divisional applications derived from the same priority chain, those may remain in play — but the specific claims adjudicated here are cancelled. The ruling substantially weakens Swarm’s IP position in the parallel and distributed processing space.
Patent claims cancelledAmazon and AWS secure freedom to operate without this patent overhead
Amazon.com and Amazon Web Services emerge from the proceeding with a Federal Circuit-backed confirmation that US9852004B2 poses no valid patent barrier to their cloud and parallel-processing operations. The affirmance also raises the bar for any future assertion of related claims against Amazon by Swarm or any successor-in-interest. White & Case LLP’s successful defence at appellate level reinforces the strength of the invalidity arguments advanced at the lower tribunal.
Freedom to operate securedAffirmed cancellation strengthens Amazon’s cloud IP position sector-wide
For the broader cloud computing and parallel-processing sector, a Federal Circuit affirmance of unpatentability is a high-authority precedent. Competitors and licensees facing similar co-processing architecture claims can cite this outcome in their own invalidity arguments. The ruling may deter similar patent assertion entity activity targeting dynamically configurable parallel-processing systems, and signals that such claims face rigorous scrutiny at both the tribunal and appellate levels.
Sector-wide precedent valueFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | SWARM TECHNOLOGY LLC | Company | Parallel processing IP licensing entity — holder of US9852004B2Search in Eureka ↗ |
| Defendant | Amazon.com, Inc. | Company | Amazon.com Inc. and Amazon Web Services Inc. — global cloud and e-commerce operatorSearch in Eureka ↗ |
| Co-Defendant | Amazon Web Services, Inc. | Company | Search in Eureka ↗ |
| Plaintiff counsel | Christine N. Jones | Attorney | Counsel for SWARM TECHNOLOGY LLCSearch in Eureka ↗ |
| Plaintiff counsel | Daniel Joseph Anderson | Attorney | Counsel for SWARM TECHNOLOGY LLCSearch in Eureka ↗ |
| Plaintiff counsel | Meredith Leigh Martin Addy | Attorney | Counsel for SWARM TECHNOLOGY LLCSearch in Eureka ↗ |
| Plaintiff counsel | Michael K. Kelly | Attorney | Counsel for SWARM TECHNOLOGY LLCSearch in Eureka ↗ |
| Plaintiff law firm | Addyhart, PC | Law Firm | Representing SWARM TECHNOLOGY LLCSearch in Eureka ↗ |
| Plaintiff law firm | Newman Jones PLLC | Law Firm | Representing SWARM TECHNOLOGY LLCSearch in Eureka ↗ |
| Defendant counsel | Adam Michael Greenfield | Attorney | Counsel for Amazon.com, Inc.Search in Eureka ↗ |
| Defendant counsel | Hallie Elizabeth Kiernan | Attorney | Counsel for Amazon.com, Inc.Search in Eureka ↗ |
| Defendant counsel | Mark S. Davies | Attorney | Counsel for Amazon.com, Inc.Search in Eureka ↗ |
| Defendant law firm | White & Case LLP | Law Firm | Representing Amazon.com, Inc.Search in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Court of Appeals for the Federal CircuitSearch in Eureka ↗ |
Official order — verbatim text
The Federal Circuit’s order — ‘THIS CAUSE having been considered, it is ORDERED AND ADJUDGED: AFFIRMED’ — is an unqualified affirmance with no remand, no partial reversal, and no qualification. At the Federal Circuit, affirmance of an unpatentability determination is reviewed under an abuse-of-discretion or substantial-evidence standard depending on the underlying question. The unqualified language indicates the court found the lower tribunal’s findings fully supported. The basis of termination recorded as ‘Unpatentable’ confirms the claims are cancelled rather than merely stayed or remanded for further proceedings.
US9852004B2 — Parallel processing via dynamically configurable co-processing cells
US9852004B2, filed under application number US14/340332, protects a system and method for parallel processing that uses dynamically configurable proactive co-processing cells. The invention addresses how computational workloads can be distributed and reconfigured across processing units in real time, a fundamental challenge in high-performance and cloud computing. The ‘proactive’ co-processing framing suggests the patent covers anticipatory workload allocation — a technically specific and commercially significant capability in scalable distributed architectures.
The patent sits squarely within the infrastructure layer of cloud computing, making it directly relevant to providers of elastic compute, parallel data processing, and high-performance computing services. Amazon Web Services operates numerous services — including EC2, Lambda, and parallel data processing pipelines — that could plausibly intersect with dynamically configurable co-processing architectures. The Federal Circuit’s affirmance of unpatentability removes this specific patent as a risk vector, but the underlying technical territory remains actively contested by other patent holders in the distributed computing space.
Should you run an FTO against US9852004B2 and its patent family?
Cloud infrastructure providers, HPC platform operators, and developers of dynamically configurable parallel-processing systems should note that while US9852004B2 has been confirmed unpatentable, the priority family under US14/340332 may include continuation or divisional applications covering overlapping subject matter. Any organisation deploying co-processing architectures with dynamic workload configuration — whether on-premises or in the cloud — should verify that no live family members assert similar claims before concluding freedom to operate.
PatSnap Eureka’s FTO Search Agent can map the full patent family of US14/340332, identify live continuations, and surface prior art that informed the unpatentability finding in this case. R&D and product teams building parallel or distributed compute systems can use Eureka to benchmark their architectures against the claim scope of related applications and flag any live exposure before product launch or investment decisions.
Run a freedom-to-operate analysis on US9852004B2 to assess your product’s exposure
Run FTO in Eureka →Similar Federal Circuit appeals: parallel processing and cloud computing patents
Explore Federal Circuit appeals involving parallel processing, distributed computing, and cloud infrastructure patents with comparable patentability outcomes.
What this case signals for the cloud computing IP landscape
The Federal Circuit’s affirmance of unpatentability in Swarm v. Amazon carries concrete implications for IP strategy in distributed and parallel-processing technology.
Cancelled parallel-processing claims reduce licensing exposure for AWS competitors
With US9852004B2 now confirmed unpatentable at Federal Circuit level, cloud infrastructure providers facing similar co-processing architecture claims have a high-authority decision to cite. Companies operating dynamically configurable compute systems should monitor whether Swarm Technology pursues related continuation applications from the same priority chain.
Patent assertion entities face higher bar for co-processing architecture claims
The affirmance suggests the prior art landscape for dynamically configurable parallel co-processing systems is well-developed enough to defeat patentability. R&D teams filing new applications in this space should conduct thorough prior art searches and ensure claims are carefully differentiated from the scope addressed in this proceeding.
SWARM v Amazon.com — key questions answered
The Federal Circuit affirmed the unpatentability of US9852004B2 on 30 June 2025. The basis of termination was recorded as Unpatentable, meaning the patent’s claims are cancelled and cannot be enforced against Amazon.com, Amazon Web Services, or any other party.
US9852004B2, filed as US14/340332, protects a system and method for parallel processing using dynamically configurable proactive co-processing cells. The patent is relevant to cloud and distributed computing architectures of the kind operated by Amazon Web Services, making AWS a natural target for assertion by Swarm Technology.
An unqualified affirmance at the Federal Circuit level means the unpatentability determination is final at this stage. Swarm Technology cannot enforce US9852004B2 against any party. Further review would require a successful petition for en banc rehearing or Supreme Court certiorari, both of which face a very high bar. Any remaining enforcement options would depend on live continuation or divisional applications in the same priority family.
The Federal Circuit’s affirmance clears Amazon.com and Amazon Web Services of liability under US9852004B2. However, FTO in the parallel and distributed processing space is broader than any single patent. Companies in this sector should monitor the US14/340332 priority family for live continuations and conduct independent FTO searches covering co-processing architecture claims from other patent holders.
The appeal ran for 676 days, from 24 August 2023 to 30 June 2025. This is longer than the Federal Circuit’s typical 12–18 month appellate window, which may suggest substantive briefing on complex patentability questions, though the specific reasons for the extended timeline are not disclosed in the public record.
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