Power2B v. Samsung: Federal Circuit Splits Decision on Input System Patent
Power2B, Inc. challenged Samsung Electronics over US8547364B2, a patent covering input systems for controlling electronic devices. The Federal Circuit issued a mixed ruling — affirming some aspects and reversing others — across a 476-day appeal, a split outcome that carries material consequences for both parties.
Federal Circuit delivers split verdict on Power2B’s input-device patent
Power2B, Inc. brought this appeal before the Court of Appeals for the Federal Circuit on 29 January 2024, challenging an earlier ruling on the patentability of US8547364B2 — a patent directed to input systems for controlling electronic devices. The respondents, Samsung Electronics Co., Ltd. and Samsung Electronics America, Inc., had prevailed at least in part at the trial level in an invalidity or cancellation proceeding. The core dispute turns on whether the claims of the ‘364 patent survive scrutiny under patentability grounds.
The Federal Circuit closed the case on 19 May 2025 with a mixed disposition: the lower decision was affirmed in part and reversed in part, while a portion of the appeal was dismissed. This three-way outcome means neither party achieved a complete victory. The claims that survived reversal remain viable for Power2B, while the affirmed portions confirm Samsung’s successful challenge to at least some of the patent’s scope. The partial dismissal suggests certain issues were procedurally foreclosed from appellate review on the merits.
A 476-day pendency is consistent with cases requiring substantive technical and legal analysis at the Federal Circuit. The split result suggests the appellate panel found genuine merit on both sides of the patentability dispute — a pattern that typically signals close claim-construction or prior-art questions rather than clear-cut invalidity. The public record does not disclose which specific claims were affirmed versus reversed, nor the precise grounds for the partial dismissal, leaving the practical claim-scope implications partially opaque without access to the full opinion.
Filing to Appeal Dismissed in Part in 476 days
476 days — above median for Federal Circuit patent appeals, suggesting substantive complexity
Federal Circuit’s split ruling: what affirmed-in-part, reversed-in-part means
What ‘affirmed-in-part, reversed-in-part’ means at the Federal Circuit
An affirmed-in-part, reversed-in-part disposition means the appellate panel found no reversible error in some elements of the lower decision, while identifying reversible legal or factual error in others. The court does not retry the case — it reviews the record under defined standards (de novo for claim construction; substantial evidence for factual findings). The result is a partial reinstatement of Power2B’s patent rights alongside a confirmed cancellation of other claims.
Mixed appellate dispositionPower2B recovers some claim scope — but not all
The reversal component is a meaningful win for Power2B: claims set aside by the lower tribunal are reinstated, restoring at least partial enforceability of US8547364B2. Those surviving claims can form the basis for continued or renewed enforcement against Samsung and potentially other competitors in the input-device sector. However, the affirmed portion confirms that some claims were validly cancelled, narrowing the patent’s overall footprint.
Partial patent survivalSamsung’s invalidity win is partial — reversed claims remain live
Samsung secured a confirmed cancellation of at least some Power2B claims through the affirmed portion, which represents a durable win — those claims cannot be re-litigated on the same grounds. However, the reversal means Samsung faces ongoing exposure from the reinstated claims. Further challenge options include seeking en banc rehearing or certiorari to the Supreme Court, though both carry low grant rates. Samsung may also explore IPR or ex parte reexamination on the surviving claims.
Partial invalidity confirmedSurviving claims raise FTO risk for the input-system sector
For OEMs, device manufacturers, and software developers building input or control interfaces for electronic devices, the reinstated claims of US8547364B2 warrant fresh freedom-to-operate analysis. A Federal Circuit reversal strengthens the surviving claims’ presumption of validity. Competitors that assumed the patent was fully cancelled must now reassess product clearance. The split ruling also signals that at least some claim scope was distinct enough from prior art to survive appellate review.
FTO reassessment requiredFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Power2B, Inc. | Company | Input device technology company — holder of US8547364B2Search in Eureka ↗ |
| Defendant | Samsung Electronics Co., Ltd. | Company | Global consumer electronics manufacturer and its US subsidiarySearch in Eureka ↗ |
| Co-Defendant | Samsung Electronics America, Inc. | Company | Search in Eureka ↗ |
| Plaintiff counsel | Adam Peter Daniels AT | Attorney | Counsel for Power2B, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Polsinelli PC | Law Firm | Representing Power2B, Inc.Search in Eureka ↗ |
| Defendant counsel | Ryan K. Yagura. | Attorney | Counsel for Samsung Electronics Co., Ltd.Search in Eureka ↗ |
| Defendant law firm | O’melveney & Myers LLP | Law Firm | Representing Samsung Electronics Co., Ltd.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 disposition — ‘AFFIRMED-IN-PART AND REVERSED-IN-PART’ — reflects an appellate panel that found genuine legal error in portions of the lower patentability ruling while upholding other aspects under the applicable standards of review. Claim construction questions receive de novo review; underlying factual findings on patentability are reviewed for substantial evidence. The accompanying partial dismissal narrows the issues actually decided on the merits, suggesting some grounds of appeal were procedurally foreclosed. This split outcome preserves Power2B’s right to enforce surviving claims and leaves Samsung with confirmed but incomplete invalidity protection.
US8547364B2 — Input system for controlling electronic devices
US8547364B2 (application number US13/114580) protects an input system for controlling electronic devices. The patent sits in the human-computer interaction and device-control space — a technically active field that intersects touch interfaces, gesture recognition, and multi-device control architectures. The application filing date establishes its priority position relative to the consumer electronics input-method innovation wave of the early 2010s, a period of intense patenting activity by both established OEMs and specialist IP development companies.
For Samsung — one of the world’s largest manufacturers of smartphones, tablets, smart TVs, and other electronic devices — a live input-system patent held by a third party represents a non-trivial enforcement risk across multiple product lines. The Federal Circuit’s partial reversal strengthens whatever claims survived, increasing their strategic value for Power2B in licensing negotiations or future enforcement actions. Companies developing or manufacturing input-control technology for consumer electronics should treat the reinstated claims as a priority item for FTO clearance.
Should you run an FTO analysis against US8547364B2?
Any organisation designing, manufacturing, or distributing input systems for electronic devices — including touch controllers, gesture-based interfaces, remote control architectures, or software input layers — should assess exposure against the surviving claims of US8547364B2. The Federal Circuit’s partial reversal means those claims have now withstood an invalidity challenge, raising the evidentiary bar for future defendants. OEMs supplying components to consumer electronics brands face the same risk as end-product manufacturers.
PatSnap Eureka’s FTO Search Agent can map the surviving claim language of US8547364B2 against your product architecture, identify the closest prior art, and flag design-around opportunities. With a Federal Circuit ruling now on record, Eureka’s litigation-aware analysis incorporates the appellate posture — giving IP teams a more accurate clearance picture than a standard patent search alone would provide. Run your FTO before your next product release cycle.
Run a freedom-to-operate analysis on US8547364B2 to assess your product’s exposure
Run FTO in Eureka →Similar Federal Circuit appeals involving input-system and consumer electronics patents
Explore Federal Circuit patent appeals involving input-system, touch-interface, and device-control technology, including related invalidity and patentability challenges against consumer electronics OEMs.
What this case signals for the input-device and consumer electronics IP landscape
A split Federal Circuit ruling on input-system patents creates both risk and opportunity for electronics OEMs and patent holders across the sector.
Partial reversals at the Federal Circuit are not rare — but they demand claim mapping
When the Federal Circuit reverses in part, the practical impact depends entirely on which claims survived. Companies relying on prior invalidity rulings to clear products must audit which specific claim numbers were reinstated. A single independent claim surviving reversal can cover a broad product category. Conduct targeted claim mapping before assuming product freedom.
Samsung’s dual-entity structure creates jurisdictional nuance worth tracking
The case names both Samsung Electronics Co., Ltd. (the Korean parent) and Samsung Electronics America, Inc. (the US subsidiary). In enforcement contexts, this distinction affects where injunctive relief or damages can be sought. The appellate record may clarify which entity’s acts were at issue — relevant for any licensing or settlement discussions tied to the surviving claims.
Power2B v Samsung — key questions answered
The Federal Circuit issued an affirmed-in-part and reversed-in-part decision on 19 May 2025. Some aspects of the lower patentability ruling were upheld, while others were reversed in Power2B’s favour. A portion of the appeal was also dismissed. The case concerned US8547364B2, a patent covering input systems for controlling electronic devices.
It means the Federal Circuit found that some patent claims were correctly invalidated or cancelled below (affirmed) while other claims were wrongly invalidated and are now reinstated (reversed). The reinstated claims are enforceable and carry a strengthened presumption of validity, having survived appellate challenge. The affirmed claims remain cancelled and cannot be re-litigated on the same grounds.
US8547364B2 (application US13/114580) is a patent held by Power2B, Inc. covering an input system for controlling electronic devices. It sits in the human-computer interaction and device-control technology space, relevant to touch interfaces, gesture recognition, and related input architectures used across smartphones, tablets, smart TVs, and other consumer electronics.
The public record does not specify the precise grounds for the partial dismissal. In Federal Circuit appeals arising from patentability proceedings, partial dismissals typically reflect procedural issues such as lack of standing for certain claims, failure to preserve arguments below, or mootness. The dismissal limits the scope of claims the appellate court reviewed on the merits but does not affect the affirmed or reversed portions of the ruling.
Companies designing or manufacturing input systems for electronic devices should conduct or update a freedom-to-operate analysis against the surviving (reversed) claims of US8547364B2. Claims reinstated by the Federal Circuit carry heightened validity presumption. Prior product clearance based on an assumed full cancellation of the patent is likely no longer reliable. Monitoring further proceedings — including any potential remand, rehearing petition, or new district court enforcement — is also advisable.
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