The Theory of Strict Product Liability
Product liability law holds manufacturers, distributors, and sellers responsible for injuries caused by defective products regardless of whether they were negligent. This strict liability standard recognizes that consumers cannot inspect complex products for hidden dangers and that manufacturers are in the best position to ensure safety before products reach the market.
To establish strict product liability, the plaintiff must prove the product was defective when it left the manufacturer's control, the product was used in a reasonably foreseeable manner, and the defect caused the plaintiff's injuries. The plaintiff does not need to prove the manufacturer was careless or knew about the defect. This lower burden of proof makes product liability cases more accessible than negligence claims.
Types of Product Defects
Design Defects
A design defect exists when the product's inherent design makes it unreasonably dangerous even if manufactured perfectly. Design defect cases often involve vehicles with unstable rollover propensity, power tools without proper guards, or pharmaceutical drugs with dangerous side effects that outweigh benefits. Courts evaluate design defects using risk-utility analysis, weighing the product's utility against the danger it poses.
Manufacturing Defects
Manufacturing defects occur when a product departs from its intended design during production. A single batch of contaminated medication, a car with a cracked brake rotor, or a toy with a loose choking hazard are manufacturing defects. These cases are often easier to prove than design defects because the deviation from specifications is objective.
Failure to Warn
Failure to warn claims arise when a product has non-obvious dangers that require consumer notification. Inadequate instructions, missing safety warnings, or unclear hazard labels can support these claims. The manufacturer must warn of dangers that are not obvious to ordinary consumers and provide instructions for safe use.
Who Can Be Held Liable?
Product liability extends beyond manufacturers to everyone in the distribution chain. Distributors, wholesalers, retailers, and even lessors may be liable for defective products. This broad liability ensures victims can recover even if the manufacturer is bankrupt, foreign, or otherwise judgment-proof. Identifying all potential defendants maximizes the likelihood of full compensation.
In some cases, multiple defendants share liability. A vehicle may have a design defect from the manufacturer, a manufacturing defect from a parts supplier, and an inadequate warning from the dealership that modified the vehicle. Each defendant may be jointly and severally liable, meaning the victim can recover the full judgment from any one defendant.
Common Defenses in Product Cases
Defendants in product liability cases raise several predictable defenses. They may argue the product was altered after leaving their control, that the plaintiff misused the product unforeseeably, or that the plaintiff's own negligence contributed to the injury. Sophisticated user defenses claim the plaintiff was an expert who should have recognized the danger without a warning.
Preemption defenses argue that federal regulations supersede state tort law, protecting manufacturers from liability. These defenses are complex and fact-specific, but courts have rejected preemption arguments in many pharmaceutical and medical device cases, allowing injured consumers to pursue state law claims.
The Value of Product Liability Claims
Product liability cases often involve catastrophic injuries because defective products can affect thousands of consumers before the defect is discovered. Mass tort litigation consolidates individual claims against the same defendant, creating enormous exposure that motivates settlement. Individual product liability claims may also yield substantial recoveries when injuries are severe and the defect is clearly established.
