Pennslyvania 

Product Liability:  Two (2) years from when claim accrues.

Personal Injury (Caused by Negligence):  Two (2) years from when claim accrues.

Statute of Repose:  No specific statute of repose for product liability actions.

Accrual Rule:  Statute begins to run when the injured party discovers, or through reasonable diligence and intelligence should have discovered, the facts that form the basis of a cause of action. In most cases, this is the injury and a causal link. (Discovery Rule Based)