What is the BEST definition of a patent in the field of information technology?
A patent is a form of copyright that protects the expression of ideas, such as literary works or music.
A patent is a type of software license that gives users the right to use a piece of software.
A patent is a legal protection for inventors which gives them exclusive rights to their inventions for a limited time.
A patent is a protection for brand names and logos that distinguish goods and services.