Introduction

When Push Data, LLC filed a patent infringement action against retail giant Costco Wholesale Corporation in December 2023, it signaled another entry in the ongoing wave of mobile application patent assertions targeting major U.S. retailers. The case, docketed as 4:23-cv-01119 in the U.S. District Court for the Eastern District of Texas, closed just 106 days later via voluntary dismissal — before Costco ever filed an answer.

The litigation centered on three issued U.S. patents allegedly infringed by the Costco mobile application, and its rapid resolution raises important questions about pre-litigation strategy, assertion leverage, and early-stage dismissal dynamics in mobile technology patent cases.

For patent attorneys, IP professionals, and R&D teams operating in the mobile application and retail technology space, this case offers a concise but instructive look at how quickly patent infringement actions can dissolve — and what that means for litigation calculus on both sides.

Case Overview

The Parties

The Patents at Issue

This case involved three U.S. patents that formed the basis of Push Data’s infringement allegations, all directed at foundational mobile data and communication technologies. These patents collectively address the technological architecture underlying how data is pushed, delivered, and managed within mobile application environments — a core functionality of any modern retail app.

• • US7292844B2 — Directed to wireless communication and data push technologies
• • US7058395B2 — Related to mobile data delivery and notification systems
• • US7212811B2 — Covering methods and systems for mobile application data management

The Verdict & Legal Analysis

Outcome: Voluntary Dismissal Without Prejudice

Push Data filed a Notice of Voluntary Dismissal pursuant to Federal Rule of Civil Procedure 41(a)(1)(A)(i), which permits a plaintiff to dismiss an action without a court order provided the defendant has not yet served an answser or motion for summary judgment.

Because Costco had not yet answered the complaint, the dismissal was self-executing — requiring no judicial approval. The notice expressly stated that each party shall bear its own costs, expenses, and attorneys’ fees, eliminating any fee-shifting implications under 35 U.S.C. § 285.

Legal Significance

The infringement action never reached substantive litigation thresholds. Without a filed answer, there was no opportunity for claim construction, invalidity challenges, summary judgment, or discovery. The voluntary dismissal at this stage suggests one of several strategic scenarios: a negotiated licensing resolution reached out of court, a plaintiff reassessment of litigation risk or claim viability, or a strategic withdrawal to refile in a different venue or against a different defendant.

Under Rule 41(a)(1)(A)(i), a voluntary dismissal before answer is without prejudice by default unless the notice specifies otherwise. Push Data’s filing did not explicitly designate the dismissal as with prejudice, which means — absent a separate settlement agreement — the plaintiff retains the right to refile the same claims against Costco or other defendants. This procedural nuance is critical as it distinguishes this outcome from a dismissal with prejudice, which would function as a final adjudication on the merits for res judicata purposes.