Introduction

In a case that concluded as quickly as it began, VDPP, LLC’s patent infringement action against Sharp Corporation ended with a voluntary dismissal with prejudice filed April 19, 2024, and formally closed April 29, 2024. Filed in the Texas Western District Court on December 1, 2023, the litigation centered on two U.S. patents covering advanced 3D display filter technology — specifically, faster state transitioning for continuous adjustable 3Deeps filter spectacles using multi-layered variable tint materials.

The case (No. 7:23-cv-00191) closed after just 150 days, never progressing beyond the initial filing stage before Sharp Corporation filed an answer or dispositive motion. The dismissal with prejudice means VDPP, LLC cannot reassert these same claims against Sharp on the same patents.

For patent attorneys, IP professionals, and R&D teams operating in the display technology and immersive visual experience sectors, this outcome offers meaningful signals about patent assertion strategy, portfolio management, and litigation risk in an increasingly competitive IP landscape.

Case Overview

The Parties

The Patents at Issue

Two U.S. patents formed the foundation of VDPP’s infringement claims. Both patents address the technical challenge of improving switching speed and visual performance in 3D viewing systems — a niche but commercially relevant area within the broader display and augmented/virtual reality technology ecosystem.

• • U.S. Patent No. 9,699,444 B2 (Application No. 15/217,612) — Directed to technology enabling faster state transitioning in adjustable 3Deeps filter spectacles.
• • U.S. Patent No. 11,039,123 B2 (Application No. 17/156,703) — A continuation or related patent covering multi-layered variable tint materials used in continuous adjustable 3D display filter systems.

The Accused Products

The litigation targeted products associated with “faster state transitioning for continuous adjustable 3Deeps filter spectacles using multi-layered variable tint materials” — technology embedded in advanced 3D viewing hardware. While specific Sharp product model numbers were not disclosed in the case record, the accused technology aligns with display systems incorporating electronically adjustable optical filtering.

Legal Representation

VDPP, LLC was represented by Ramey LLP, with attorneys William P. Ramey, III and Jeffrey Eugene Kubiak leading the plaintiff’s litigation team. Ramey LLP is a well-known IP boutique with a significant portfolio of patent assertion cases. No defendant-side counsel appearance was recorded before dismissal.

Litigation Timeline & Procedural History

VDPP, LLC filed suit in the Texas Western District Court, a venue historically favored by patent plaintiffs for its familiarity with complex IP matters and relatively expedient dockets. The case never advanced to claim construction, summary judgment, or trial — Sharp Corporation did not file an answer or any dispositive motion during the pendency of the action.

This procedural posture is significant: under Federal Rule of Civil Procedure 41(a)(1)(A)(i), a plaintiff may voluntarily dismiss an action without a court order when the opposing party has not yet served an answer or motion for summary judgment. The court’s closing order, citing *In re Amerijet Int’l, Inc.*, 785 F.3d 967, 973 (5th Cir. 2015), confirmed the dismissal was self-effectuating. Each party was ordered to bear its own costs, expenses, and attorney fees.

The 150-day duration reflects a lifecycle typical of pre-answer voluntary dismissals — suggesting resolution, strategic reassessment, or settlement discussions occurring entirely outside the formal litigation record.

The Verdict & Legal Analysis

Outcome

The case was terminated by voluntary dismissal with prejudice pursuant to FRCP 41(a)(1)(A)(i). No damages were awarded, no injunctive relief was granted, and no claim construction or merits determination was reached. The dismissal with prejudice permanently bars VDPP from re-filing the same infringement claims against Sharp Corporation on U.S. Patent Nos. 9,699,444 and 11,039,123.

Verdict Cause Analysis

Because the case closed before Sharp filed responsive pleadings, no court-issued merits ruling exists. The legal record reflects only the procedural mechanics of dismissal. However, several interpretive observations are warranted:

Early-Stage Resolution: The absence of any defendant filing suggests Sharp may have engaged VDPP in pre-litigation or early-stage negotiations. The transition from filing to dismissal in 150 days — without a single court ruling on substance — is consistent with confidential licensing discussions or a negotiated exit.

Prejudice as a Signal: Dismissal with prejudice, rather than without, is notable. A dismissal without prejudice would preserve VDPP’s ability to refile. Choosing prejudicial dismissal may indicate a licensing agreement was reached, the assertion was determined non-viable upon deeper claim analysis, or Sharp provided sufficient design-around evidence to deter further pursuit.

No Fee Award: The court’s instruction that each party bear its own fees forecloses any 35 U.S.C. § 285 “exceptional case” fee motion by Sharp — a common defensive lever following voluntary dismissals.

Legal Significance

While this case produced no precedential opinion, its procedural outcome reinforces several important principles:

• FRCP 41(a)(1)(A)(i) remains a powerful exit tool for plaintiffs when defendants have not yet answered, enabling clean, low-cost case termination.
• The *In re Amerijet* doctrine confirms that such dismissals are self-executing — requiring no judicial approval, reducing court burden, and accelerating resolution.
• Patent assertion entities operating in niche technology areas like 3D display filtering face inherent challenges in sustaining litigation against large, well-resourced defendants like Sharp Corporation.

Strategic Takeaways

For Patent Holders: Early claim mapping against specific accused products is critical before filing. If infringement theory weaknesses emerge post-filing, FRCP 41(a)(1)(A)(i) offers a structured exit before incurring significant litigation costs — though the with-prejudice consequence must be carefully weighed.

For Accused Infringers: Delaying responsive filings to preserve plaintiff’s voluntary dismissal option can be a calculated defense strategy, particularly when defendants prefer business resolution over costly motion practice.

For R&D Teams: Companies developing 3D display, AR/VR optical filtering, or variable tint material technologies should conduct Freedom to Operate (FTO) analyses against U.S. Patent Nos. 9,699,444 and 11,039,123. While the dismissal with prejudice binds Sharp, VDPP retains the ability to assert these patents against other defendants.

Industry & Competitive Implications

The 3D display and optical filtering technology sector remains an active area of patent assertion, particularly as augmented reality, virtual reality, and advanced display systems attract significant R&D investment. VDPP’s assertion against Sharp — a major display technology manufacturer — signals continued PAE activity targeting established players with deep product portfolios.

For companies in the immersive display supply chain, this case highlights the importance of proactive IP risk management. Patent families covering variable tint materials and adaptive spectacle technology are increasingly relevant as XR (extended reality) hardware proliferates.

The absence of any public settlement terms preserves uncertainty in the market: did Sharp take a license? Did VDPP find the claim position untenable? Neither outcome is publicly verifiable, but both carry strategic significance for third-party competitors monitoring the patent landscape around these technologies.

Broader licensing trends in display technology suggest that PAEs continue to use Texas federal courts as preferred assertion venues, with early settlement or dismissal remaining the predominant resolution pathway — often before public court records illuminate the full scope of business resolution.