Why Do Some Product Defect Cases Take Years to Resolve?

February 10, 2026 | By Gallagher & Kennedy Injury Lawyers
Why Do Some Product Defect Cases Take Years to Resolve?

If you have been asking why product liability cases take so long, you are not imagining the wait. These liability cases genuinely take longer than most injury claims. That is not a sign that something is wrong. It is a reflection of how complex they are to build.

A product defect case is not just about what happened to you. It is about proving how a product failed, who is responsible, and why that failure caused your injury. Cases can take over a year just to reach the point where a lawsuit is ready to move forward. That kind of proof takes time to develop properly.

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These Cases Require Technical Proof From the Start

Most injury claims focus on what happened at a single moment. Product cases are different. They require proving something was wrong with the item itself, whether in the way it was designed, manufactured, or labeled.

To answer those questions, product liability attorneys and experts must review engineering data, run product tests, examine design specifications, and evaluate how the item performed under real conditions. That work starts early and often continues throughout the life of the case. It cannot be rushed without risking inaccurate or incomplete conclusions.

When technical work is rushed, the consequences are serious. An expert opinion built on incomplete testing can be challenged, excluded by the court, or dismantled on cross-examination. Once that happens, the foundation of the entire liability argument weakens. Taking the time to do this analysis correctly is not a delay -- it is what makes the claim defensible.

This is one reason the liability timeline is longer from the very beginning. Product claims can span a few months of investigation before a single filing is made, and that is before trial preparation even begins.

Multiple Parties Can Be Responsible

In a typical car accident, there is usually one at-fault driver. Product liability situations often involve several parties who may share responsibility. Depending on the product and how it reached you, that can include:

damaged vehicle closeup after a heavy crash, car wreck, exploded airbag, broken windshield
  • The original manufacturer of the finished product
  • A supplier who made a defective component or material
  • A distributor who handled the product between factory and retailer
  • A retailer who sold the item to the public
  • A maintenance or repair provider who serviced it after sale

Each of those parties has its own lawyer, legal team, and insurance company. Each may point blame at the others. Coordinating discovery, depositions, and evidence exchange across multiple defendants adds real time to the process. It is one of the most common reasons a liability lawsuit moves more slowly than single-defendant claims, sometimes stretching well beyond a year before resolution.

Discovery in Product Cases Is Extensive

Discovery is the phase where both sides exchange evidence. In product liability litigation, that process is often document-heavy and time-consuming.

An attorney may request years or even decades of records from a manufacturer. That can include design revisions, safety testing data, quality control logs, internal communications, and regulatory filings.

When a manufacturer resists turning over certain documents, the dispute does not simply resolve itself. One side files a motion asking the court to compel disclosure. The other side may argue that the records are privileged or proprietary. A judge then has to rule on the dispute, and in some cases, multiple rounds of briefing and hearings are required before the documents are produced. Each of those steps takes weeks. In complex multi-party cases, discovery disputes can consume months on their own.

Strong product claims depend on thorough discovery. Cutting it short can leave critical evidence on the table. This phase also often runs in parallel with medical evaluation, meaning your medical treatment is not finished while the legal process is already underway. That overlap is one reason lawsuits in this area take as long as they do.

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Expert Analysis Is Central to Proving a Defect

Expert witnesses play a major role in almost every product liability case. Courts and insurers do not take these matters on assumption. They require qualified professionals to explain how an item failed and why that failure caused injury.

Depending on the case, the experts involved may include:

  • A mechanical engineer who examines whether a vehicle component fractured due to a design flaw
  • A product safety specialist who reviews whether consumers were adequately warned about a known risk
  • A medical expert who explains how a defective product, such as a faulty medical device, caused internal injury
  • A biomechanical expert who analyzes whether the forces involved in an incident match the injuries reported

Each expert must review the evidence, conduct independent testing, prepare a written opinion, and be ready to testify at trial. Their findings shape how liability and causation are evaluated. A personal injury attorney overseeing this work knows that accuracy matters far more than speed. Rushed expert work can seriously damage a claim's credibility, which is why an experienced injury attorney will never cut corners here.

Defendants Push Back Hard on Causation

Manufacturers rarely accept responsibility without a fight. In most liability cases, defendants argue that the item was used incorrectly, that it was not actually flawed, or that something else caused the injury.

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A common defense strategy is to shift focus away from the product entirely. A manufacturer might point to the user's behavior, a maintenance provider's repairs, or even a pre-existing medical condition as the real explanation for the harm. Their goal is not necessarily to prove innocence -- it is to create enough doubt that liability becomes unclear. The more uncertainty they can introduce, the lower their exposure.

Overcoming those arguments requires careful work. Attorneys must correlate medical records with the failure, eliminate alternative causes, and build a timeline that clearly connects the harm to the product. That process often involves motions, court hearings, and additional expert input. Each step takes time, but each step also strengthens the liability case against a well-funded defense. This is where having the right legal team matters most.

Regulatory History Can Add Another Layer

Some items, like vehicles, medical devices, and industrial equipment, are subject to federal oversight. When regulatory standards apply, the case may require a deeper look at how the product was reviewed and what happened after it reached the market. That typically involves examining:

  • How the item was approved or cleared by the relevant federal agency
  • Whether prior complaints or adverse event reports were filed
  • Whether any recalls, safety warnings, or design changes were issued after release

That additional layer of documentation and review slows things down. But it can also uncover powerful evidence. A history of prior incidents or ignored safety flags can significantly strengthen a product liability claim. How long is this phase? It depends on the product and its regulatory history, but it routinely adds months to an already extended timeline.

Settlement Usually Comes Later in the Process

In many injury cases, settlement talks begin relatively early. Product liability situations tend to follow a different path. Manufacturers and their insurers typically wait until expert analysis is complete and key legal questions have been resolved before they are willing to settle.

That timeline can feel frustrating. But it also protects you. Early settlement often means leaving money on the table before the full scope of your injuries and losses is understood.

The full picture in a serious product liability case typically includes more than current medical bills. It accounts for future treatment needs, long-term rehabilitation, permanent impairment, reduced earning capacity, and the ongoing impact on daily life. None of those figures are accurate until your medical situation has stabilized and experts have had the opportunity to evaluate what your recovery will actually require. Settling before that point can permanently undervalue what you are owed.

A thorough process helps ensure that any resolution reflects what you actually experienced. These negotiations rarely happen in a few months. Most serious claims take over a year to reach that point. If you were seriously hurt, this patience matters even more. Catastrophic injury cases involving a defective product often result in significantly more serious damages once the full picture is established.

Have Questions About Your Case Timeline?

If your product liability case feels like it is standing still, you deserve a clear explanation of where things stand. The attorneys at Gallagher & Kennedy handle complex product defect cases and offer free consultations to help you understand what comes next.

FAQs About Product Defect Case Timelines

Why do product defect cases take longer than other injury claims?

Product defect cases require technical investigation, expert analysis, and extensive documentation review. Liability depends on proving how a product failed, not just what happened during an accident.

How long do product defect lawsuits usually take?

Timelines vary widely, but many product liability cases take several years to resolve due to complexity, discovery demands, and expert involvement.

Does a longer case mean something is wrong with the claim?

Not necessarily. Length often reflects complexity rather than weakness. Many strong cases require time to develop the necessary proof.

Can anything speed up a product defect case?

While some delays are unavoidable, clear documentation, preserved evidence, and consistent medical records can help prevent unnecessary setbacks.

Why don’t manufacturers settle earlier?


Manufacturers often wait until technical issues and liability questions are clarified. Early settlement is less common when defect and causation are still being evaluated.

Why Patience Is Often Part of the Process

Product defect cases take time because they are built on evidence, not assumptions. Investigating how a product failed, who is responsible, and how that failure caused injury requires careful, methodical work.

If you are involved in a product defect case and feel frustrated by the pace, that reaction is understandable. These cases move slowly because accuracy matters, and the consequences are significant.

If you are concerned about delays, have questions about where your case stands, or need help understanding what comes next, speaking with an experienced product liability attorney can help clarify the process. Gallagher and Kennedy offer free consultations to discuss your situation and explain how complex product defect claims are typically evaluated and pursued.