Introduction

In a brisk 94-day resolution, a fishing lure patent infringement lawsuit filed in the Northern District of California concluded with a voluntary dismissal with prejudice — ending all claims before significant litigation costs could accumulate. Filed on December 18, 2023, and closed on March 21, 2024, Steve Johnson v. Lunkerhunt LP et al. (Case No. 5:23-cv-06515) targeted an unusually broad coalition of defendants: a fishing tackle brand, two major technology platforms, and a distribution group.

The case centered on U.S. Patent No. US6931785B1, covering a simulated turtle fishing lure apparatus — a niche but commercially contested product category. Plaintiff Steve M. Johnson, represented by Murthy Patent Law Inc., asserted infringement claims against Lunkerhunt LP, Google LLC, eBay Inc., and BGDM Group.

The swift, cost-neutral dismissal raises important questions for IP professionals: What drove this multi-defendant assertion strategy, and what does its rapid resolution signal about fishing tackle patent litigation and marketplace platform liability? This analysis examines the case structure, procedural outcome, and strategic implications for patent holders, accused infringers, and R&D teams operating in adjacent product categories.

Case Overview

The Parties

The Patent at Issue

This case involved a specific utility patent covering a simulated turtle fishing lure apparatus.

• • Patent Number: US6931785B1 (Application No. US10/809007)
• • Technology Area: Fishing lure apparatus design — specifically, a simulated turtle lure
• • Subject Matter: The patent covers the structural and functional design of an artificial fishing lure replicating turtle morphology to attract game fish

The Accused Product

The accused product category is described as a **simulated turtle fishing lure apparatus** — a lifelike soft or hard-body lure designed to mimic turtle movement and appearance. This product type commands significant market interest among bass and freshwater fishing enthusiasts.

Legal Representation

• • Plaintiff’s Counsel: Karthik Krishna Murthy, Murthy Patent Law Inc.
• • Defendant’s Counsel: Not disclosed in case record

The Verdict & Legal Analysis

Outcome

On March 21, 2024, Plaintiff Steve M. Johnson filed a stipulated voluntary dismissal pursuant to Fed. R. Civ. P. 41(a)(1)(A)(i). The dismissal was entered with prejudice as to all claims against all defendants: Lunkerhunt LP, BGDM Group, eBay Inc., and Google LLC.

Verdict Cause Analysis

The infringement action was dismissed before any judicial ruling on the merits of the patent claims. Accordingly, no formal claim construction, validity determination, or infringement finding was issued by the court. The record does not disclose whether the parties engaged in settlement negotiations, whether the defendants challenged the patent’s validity, or whether a licensing arrangement was reached privately.

The Rule 41(a)(1)(A)(i) mechanism — a pre-answer voluntary dismissal — is legally significant because it does not require defendant consent when filed before responsive pleadings. However, the with prejudice designation here goes beyond the default rule (which typically renders such dismissals without prejudice) and suggests either mutual agreement or plaintiff’s deliberate strategic choice to conclusively end the matter.

Legal Significance

The with-prejudice dismissal creates a res judicata bar, preventing the plaintiff from reasserting the same infringement claims against these defendants based on U.S. Patent No. US6931785B1. This is a complete extinguishment of the plaintiff’s rights to relitigate these specific claims.

For marketplace platform defendants like Google and eBay, the case reflects an ongoing litigation trend: e-commerce platforms being named alongside product manufacturers in patent assertions targeting online retail channels. While this case resolved early, the underlying legal theory — that platforms enabling sales of infringing products may share liability — remains an active area of IP law warranting continued monitoring.