Design v. Utility (provisional/ non-provisional) patent applications

A design patent protects the ornamental aspect of an invention (it has nothing to do with functionality of the invention). A utility patent, as the name suggests, protects the utility/functionality of an invention (it has nothing to do with the aesthetics of the invention). A utility application can be filed as a provisional (temporary) application or as a non-provisional (non-temporary, that is permanent) application. Non-provisional applications are examined, provisional applications are not!