Types of Defective Product Liability Claims

Learn the three types of defective product liability claims: manufacturer mistake, dangerous product design, and failure to provide adequate warning.

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If you have been injured or suffered other damages because of a product you used, you may have a defective product liability claim. Though the range of defective product cases is broad, the claims typically fall into three categories of product liability: (1) defective manufacture; (2) defective design; or (3) failure to provide adequate warnings or instructions concerning the proper use of the product.

Understanding these categories will help you to determine whether you have a valid claim, as well as the strategy to use in presenting your case.

When it comes to the basic types of defective product claims, every state has essentially the same basics laws, spelled out below. Keep in mind that for each of these claims, you must show not only that the product was defective, but that the defect caused your injury.

Defectively Manufactured Products

Perhaps the most obvious type of product liability claim is when the injury-causing product was defectively manufactured. A defectively manufactured product is flawed because of some error in making it, such as a problem at the factory where it was fabricated. As a result, the injury-causing product is somehow different from all the other ones on the shelf.

Examples of a manufacturing defect include:

  • a swing set with a cracked chain
  • a tainted batch of cough syrup containing a poisonous substance, or
  • a moped missing its brake pads.

In each case, the injury must have been caused by the manufacturing defect. So, if you misjudged a curve, drove off the road, and injured yourself while riding on the moped with the missing brake pads mentioned above, you would only have a manufacturing defect claim if you could show that the missing brake pads -- not your poor steering -- caused your accident.

Defectively Designed Products

In the second type of product liability category, a product's design is inherently dangerous or defective. Defective design claims do not arise from some error or mishap in the manufacturing process, but rather involve the claim that an entire line of products is inherently dangerous, regardless of the fact that the injury-causing product was perfectly made according to the manufacturer's specifications.

Examples of a design defect include:

  • a particular model of car that has a tendency to flip over while turning a corner
  • a type of sunglasses that fail to protect the eyes from ultraviolet rays, or
  • a line of electric blankets that can electrocute the user when turned on high.

Here again, the injury must have been caused by the defective design. If you accidentally crash into another vehicle while driving one of the flip-prone cars mentioned above, you would only have a design defect claim if you could show that you crashed because the car was in the process of flipping over while turning.

Failure to Provide Adequate Warnings or Instructions

The third type of product liability claim involves a failure to provide adequate warnings or instructions about the product's proper use. Failure-to-warn claims typically involve a product that is dangerous in some way that's not obvious to the user or that requires the user to exercise special precautions or diligence when using it.

Examples of a failure-to-warn claim include:

  • an electric tea kettle that is packaged without sufficient warning concerning its oddly positioned steam valve
  • a cough syrup that does not include on its label a warning that it may cause dangerous side effects if taken in combination with another commonly taken drug such as aspirin, or
  • a corrosive paint-removing chemical that is sold without adequate instructions for safe handling and use.

Once again, the injury must result from the failure to warn or properly instruct. If you are burned while using the newfangled tea kettle mentioned above, you would only have a failure-to-warn claim if you were burned by steam unexpectedly coming out of the oddly positioned steam valve.

Comparing the Three Types of Product Liability Claims

Claims involving pharmaceutical drugs provide a useful way of comparing the three types of product liability claims. If you are injured because the particular bottle of cough syrup you bought happens to contain several drops of arsenic that fell into it by accident at the factory where it was made, your claim would be based on a manufacturing defect.

By comparison, if taking that same brand of untampered-with cough syrup caused you to suffer a heart attack because of its normal ingredients, your claim would be based on a design defect.

Finally, if the cough syrup was made correctly and is generally safe for use, but you were injured because you combined it with aspirin and the label failed to warn that such a combination is dangerous, your claim would be based on a failure to warn.

By understanding these differences, you will better be able to identify your product liability claim and correctly present your case in court.

Getting Help

Depending on your case, you may wish to retain the services of a lawyer who specializes in products liability. For help on choosing a good personal injury attorney, read Nolo's article Finding a Personal Injury Lawyer. Or, you can go to Nolo's Lawyer Directory for a list of personal injury attorneys in your geographical area. To read more about defective products, see How to Win Your Personal Injury Claim, by Joseph Matthews (Nolo).

Updated by: , J.D.

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