Federal Circuit Affirms Invalidity in Smart Mobile Technologies v. Apple & Samsung Multifunction Mobile Device Patent Dispute

Introduction

In a closely watched mobile technology patent dispute, the United States Court of Appeals for the Federal Circuit affirmed the invalidity of a patent asserted by Smart Mobile Technologies, LLC against two of the world’s largest consumer electronics companies — Apple, Inc. and Samsung Electronics. Filed on December 26, 2023, and closed on October 14, 2025, Case No. 24-1289 concluded with the Federal Circuit’s affirmance of the lower tribunal’s patentability ruling, effectively ending Smart Mobile Technologies’ infringement claims over multifunction mobile devices and appliance control technology.

The case carries meaningful implications for patent assertion entities navigating patentability challenges at the appellate level, and for technology companies defending against mobile device patent litigation. With the appeal ultimately dismissed and the invalidity ruling affirmed, this outcome reinforces the Federal Circuit’s continued scrutiny of patent validity in the competitive mobile technology landscape — a critical signal for patent attorneys, IP professionals, and R&D teams managing freedom-to-operate risk across device ecosystems.

Case Overview

The Parties

The Patent at Issue

The patent at the center of this dispute is U.S. Patent No. 9,756,168 B1 (Application No. US 10/911,211), covering technology related to multifunction mobile devices and appliance control. The patent claims address functionalities at the intersection of mobile communications and device-to-device control — a technology area with broad commercial relevance across smartphones, smart home ecosystems, and IoT-connected appliances.

• • US 9,756,168 B1 — Multifunction mobile devices and appliance control

Legal Representation

Smart Mobile Technologies was represented by Graves & Shaw LLP, with attorneys Greer N. Shaw and Philip Graves leading the plaintiff’s appeal. Apple and Samsung were defended by Haynes & Boone, LLP, with a team that included Adam Carl Fowles, Andrew S. Ehmke, Angela M. Oliver, Debra Janece McComas, and Laura Vu — a robust defense team reflecting the defendants’ investment in protecting their product lines.

Litigation Timeline & Procedural History

Smart Mobile Technologies initiated this appeal on December 26, 2023, bringing the dispute before the Court of Appeals for the Federal Circuit — the exclusive appellate court for U.S. patent matters, seated in the District of Columbia. The Federal Circuit’s jurisdiction over patent appeals makes it the most authoritative forum for patent law development in the United States.

The case’s 658-day duration from filing to closure reflects the procedurally substantive nature of Federal Circuit patent appeals, which typically involve extensive briefing schedules, amicus participation opportunities, and rigorous oral argument preparation. The basis of termination is recorded as Appeal Dismissed, with the court affirming the underlying invalidity/cancellation determination — signaling that the appellate challenge did not overcome the patentability findings established at the prior proceeding level. Specific details regarding earlier district court or PTAB proceedings that preceded this appeal were not disclosed in the available case record.

The Verdict & Legal Analysis

Outcome

The Federal Circuit affirmed the invalidity ruling against U.S. Patent No. 9,756,168 B1, effectively upholding the cancellation of Smart Mobile Technologies’ patent claims. The appeal was dismissed, leaving the defendants — Apple and both Samsung entities — free from infringement liability under this patent. No damages award or injunctive relief is applicable given the patent’s invalidation. Specific financial terms or settlement figures were not disclosed in the available case record.

Verdict Cause Analysis

The core verdict cause is recorded as Patentability, with the verdict cause summary designated as an Invalidity/Cancellation Action. This classification indicates that the central legal contest was not whether the defendants’ products infringed the patent claims, but whether the patent itself survived validity scrutiny — a threshold question that, when resolved against the patent holder, terminates the litigation entirely.

Invalidity challenges in mobile technology patent cases frequently arise under 35 U.S.C. § 102 (anticipation) or § 103 (obviousness), particularly where the asserted claims involve combinations of known mobile device functionalities. Patent claims directed to multifunction mobile device control are especially vulnerable to prior art challenges given the extensive published literature and patent record in mobile communications technology developed throughout the 2000s and 2010s.

The Federal Circuit’s affirmance signals that Smart Mobile Technologies was unable to demonstrate reversible error in the underlying validity determination — a high standard that requires showing the prior proceeding’s factual findings were clearly erroneous or its legal conclusions incorrect. The dismissal of the appeal on patentability grounds further suggests the court found the record sufficient to sustain invalidity without need for remand.

Legal Significance

This outcome contributes to the Federal Circuit’s well-established body of precedent scrutinizing the validity of mobile device patents, particularly those asserting broad functional claims in the multifunction device space. Patent assertion entities targeting Apple and Samsung — both of whom maintain sophisticated and well-resourced patent defense practices — face a consistently high evidentiary bar when validity is challenged.

The affirmance also underscores the finality of Federal Circuit invalidity rulings: once a patent is invalidated at this appellate level, the patent holder loses enforceable rights against all parties, not merely the defendants in the immediate litigation. This erga omnes effect of invalidity rulings makes Federal Circuit outcomes in patentability disputes disproportionately significant for the broader patent ecosystem.

Strategic Takeaways

The affirmance in Smart Mobile Technologies v. Apple and Samsung reflects a broader pattern of Federal Circuit outcomes that have constrained patent assertion activity in the mobile device sector. Apple and Samsung, as perennial defendants in smartphone patent litigation, have refined invalidity defense strategies that prove highly effective at the appellate level — creating a formidable deterrent for assertion entities targeting mainstream consumer device functionality.

For the multifunction mobile device and appliance control technology sector, this outcome signals continued judicial skepticism toward broad functional patent claims in spaces where prior art is dense and innovation is incremental. Companies developing smart home integration, IoT appliance control, and mobile-device-as-controller technologies should monitor this area carefully, as both patent assertion risk and invalidity exposure remain elevated.

The involvement of Haynes & Boone, LLP as defense counsel for both Apple and Samsung entities demonstrates the continued preference of major technology defendants for coordinated, specialist IP litigation firms in Federal Circuit appeals — a market dynamic relevant to law firms positioning their patent appellate practices.