What Makes a Product Liability Claim Different From an Ordinary Negligence Claim?

Design Defects

A design defect exists when a product’s entire design is unreasonably dangerous, even when manufactured exactly as intended, meaning every unit of that product carries the same inherent risk. The problem is baked into the blueprint itself, not a one-off manufacturing error.

These cases often involve showing that a safer, feasible alternative design existed and could have been used without significantly compromising the product’s function or cost, this comparison is frequently central to proving a design defect claim.

Manufacturing Defects

A manufacturing defect occurs when a specific product deviates from its intended design due to an error in the manufacturing process, meaning the product as designed was safe, but this particular unit was not. A batch of products with a contaminated component, or a single item that was improperly assembled, are common examples.

These claims often focus heavily on the manufacturing and quality control process, comparing how the specific product that caused injury differs from how it was supposed to be made.

Failure to Warn

A product can also be defective if it lacks adequate warnings or instructions about risks that are not obvious to an ordinary user, even if the product itself is otherwise properly designed and manufactured. The danger is real, it is the lack of adequate warning about it that creates liability.

This category covers both a complete absence of warning and warnings that exist but are inadequate, too small to notice, unclear, or buried among less important information in a way that fails to actually communicate the real risk.

Who Can Be Liable

Depending on the facts, the manufacturer, a component parts maker, a distributor, or even the retailer that sold the product can potentially share liability for a defective product injury. Every party in the chain of distribution can theoretically bear some responsibility.

This matters practically because it can mean multiple potentially liable parties, and multiple insurance policies, are available in a serious product injury case, rather than relying on a single defendant’s resources.

Why Strict Liability Matters

Because many product liability claims can proceed under a strict liability theory, the focus is often on the product’s condition and the injury it caused, rather than needing to prove a specific act of carelessness by the manufacturer. This is a meaningfully lower bar in some respects than an ordinary negligence claim.

That said, strict liability does not mean automatic liability, you still need to establish that the product was actually defective, and that the defect caused your injury, not just that you were using the product when you got hurt.

Common Categories of Defective Products

• Household and consumer products, appliances, tools, and everyday items with design or manufacturing flaws.
• Vehicles and vehicle components, including defective brakes, airbags, or tires.
• Medical devices, implants or equipment that fail or cause harm beyond known, disclosed risks.
• Children’s products, toys, car seats, and similar items with heightened safety expectations.

Preserving Evidence in a Product Liability Case

Unlike many personal injury cases, the physical product itself is often the single most important piece of evidence. Keep the product, in its post-injury condition, exactly as it was, do not repair, discard, or modify it before an attorney and any necessary experts have had a chance to examine it.

Packaging, instructions, purchase receipts, and any warnings that came with the product are also valuable evidence and should be preserved alongside the product itself.