HyperQuery LLC v. Sony Corp.: Voluntary Dismissal in App Download Patent Case

Introduction

In a case that ended without a judicial ruling on the merits, HyperQuery LLC’s patent infringement action against Sony Corp. was voluntarily dismissed with prejudice on February 19, 2026 — just over 13 months after filing. The case, docketed as 2:25-cv-00023 in the U.S. District Court for the Eastern District of Texas, centered on U.S. Patent No. 9,529,918 B2, covering systems and methods for downloading applications via a communication network.

While the dismissal with prejudice forecloses any refiling of identical claims against Sony, the case raises important strategic questions for patent holders, accused infringers, and R&D teams operating in the competitive app distribution and mobile software delivery space. The rapid procedural exit — before significant motion practice — is a pattern frequently observed in Eastern District of Texas patent litigation and carries meaningful signals for IP professionals monitoring assertion trends in the mobile technology sector.

The Parties

The Patent at Issue

This case centered on a single patent covering fundamental software distribution elements:

• • US 9,529,918 B2 — Systems and methods for downloading applications via a communication network.

Litigation Timeline & Procedural History

Venue Selection: The Eastern District of Texas remains a plaintiff-favored forum in patent litigation, known for its historically patent-holder-friendly environment, efficient dockets, and established case management procedures for IP disputes. HyperQuery’s choice of this district is consistent with strategic venue selection patterns common among patent assertion entities.

Procedural Posture: Based on available records, the case closed at an early procedural stage. The dismissal was filed pursuant to Rule 41(a)(1)(A)(i) of the Federal Rules of Civil Procedure — a unilateral voluntary dismissal available before the defendant files an answer or a motion for summary judgment. This suggests the case resolved or collapsed prior to substantive defensive pleadings from Sony, indicating either a pre-answer settlement, licensing resolution, or a strategic withdrawal.

No claim construction proceedings, Markman hearings, or summary judgment rulings were recorded before closure.

The Verdict & Legal Analysis

Outcome

The Court accepted HyperQuery’s Notice of Voluntary Dismissal With Prejudice under Rule 41(a)(1)(A)(i), formally closing the case on February 19, 2026. Key terms of the dismissal order include:

• All pending claims dismissed with prejudice
• All pending requests for relief denied as moot
• Each party bears its own costs, expenses, and attorneys’ fees

No damages were awarded. No injunctive relief was granted or denied on the merits. The “each party bears its own costs” provision is standard under Rule 41 voluntary dismissals absent a contractual fee-shifting arrangement or court order.

Legal Significance

The with-prejudice designation is the most consequential legal element of this outcome. Unlike a without-prejudice dismissal — which preserves the plaintiff’s right to refile — a with-prejudice dismissal operates as a final adjudication on the merits for res judicata purposes. HyperQuery cannot reassert the same infringement claims against Sony under the ‘918 patent.

This outcome does not, however, prevent HyperQuery from asserting the ‘918 patent against other defendants, nor does it affect the patent’s validity or enforceability against third parties.