In general, a product manufacturer is liable for harm caused by their defective merchandise if it causes damage to a buyer, user, or bystander when it is being used in a reasonably foreseeable manner. Product liability often utilizes the legal concept of negligence. Negligence claims allege that a failure to exercise reasonable care resulted in a defect that caused the plaintiff harm.
The nature of the product defect is important to liability. In DuBois, an attorney could argue there were dangerous product defects caused by the manufacturing, design, or marketing team.