Eagle Eyes Traffic Industry USA v. E-Go Bike: Design Patent Win Secures Injunction & $215K Award

Case Overview

In a decisive patent infringement victory, the U.S. District Court for the Northern District of California entered final judgment in favor of Eagle Eyes Traffic Industry USA Holding, LLC against E-Go Bike, LLC, awarding over $215,000 in damages, attorney’s fees, and costs — plus a permanent injunction barring future infringement of two automotive lighting design patents. The case, Eagle Eyes Traffic Industry USA Holding, LLC v. E-Go Bike, LLC (Case No. 3:21-cv-07097), closed on March 28, 2025, after 1,291 days of litigation.

At its core, this automotive lighting patent infringement dispute centered on replacement headlamps designed for 2004–2017 Volvo VNX trucks — a commercially significant aftermarket product category. The case ultimately resolved through a combination of stipulated permanent injunction and default judgment, offering instructive lessons on design patent enforcement, litigation conduct, and damages calculation under 35 U.S.C. § 289.

For patent attorneys, IP professionals, and R&D teams operating in the automotive parts and aftermarket accessories space, this outcome underscores the potency of design patent assertion strategies and the severe consequences of litigation abandonment.

The Parties

Patents at Issue

This lawsuit involved two design patents covering ornamental design elements of automotive headlamp assemblies:

• • US D790,763S — Ornamental design for vehicle headlamp.
• • US D785,838S — Ornamental design for vehicle headlamp.

The Verdict & Legal Analysis

Outcome

The court entered **judgment in favor of Eagle Eyes Traffic Industry USA Holding, LLC** on the merits, awarding:

Total confirmed award: $215,446.80, with pre-judgment interest to be added by subsequent order. A **permanent injunction** was simultaneously incorporated into the final judgment, permanently prohibiting E-Go Bike from infringing the two design patents.

Key Legal Issues

The case proceeded on an **infringement action** theory. Several critical strategic and procedural factors shaped the outcome:

Default Judgment Mechanism: E-Go Bike’s counsel withdrew, and the defendant failed to attend the pretrial conference — triggering default under Federal Rule of Civil Procedure 55. The court’s entry of default judgment following the prove-up hearing is textbook procedure, but the underlying infringement claim had already been substantially resolved through the February 2025 stipulated injunction.

Design Patent Damages Under § 289: The damages award of $38,825.80 was calculated under 35 U.S.C. § 289, which permits recovery of an infringer’s **total profits** from the sale of articles bearing an infringing design. This statute — significantly shaped by the Supreme Court’s 2016 ruling in *Samsung Electronics Co. v. Apple Inc.* — allows design patent holders to recover profits attributable to an “article of manufacture,” which in aftermarket automotive parts cases can be the entire product. The relatively modest damages figure likely reflects E-Go Bike’s limited commercial scale.

Attorney’s Fees Under § 285: The fee award of $176,621.00 — representing over **four times** the base damages — is significant. Under § 285, fees are available only in “exceptional cases.” The defendant’s litigation conduct, including failure to appear and abandonment of counsel, likely contributed to the court’s finding that this qualified as exceptional, consistent with the *Octane Fitness, LLC v. ICON Health & Fitness, Inc.* (2014) standard.

Pre-Judgment Interest: The court’s sua sponte reconsideration to award pre-judgment interest under § 284, citing *Droplets, Inc. v. Yahoo! Inc.*, 658 F. Supp. 3d 754 (N.D. Cal. 2023), reflects the Northern District’s commitment to complete compensatory relief even in default judgment contexts.