This method is beneficial but not harmful (guess a legal word) The answer is: patent law
The word patent comes from the Latin word litterae patents, which means public. It originally meant that it was not necessary to bear the national seal. A file that can be opened and read after unpacking. Patent law is a legal regulation that confirms that inventors (or their successors) have exclusive rights to their inventions, stipulates the acquisition and elimination of patent rights, the enforcement and protection of patent rights, and the rights and obligations of other patentees. General term.