Abstract:The setting of bet365 coupon code boundaries and the emergence of new bet365 coupon code and interests，Need to further grasp the object elements of bet365 coupon code。Object is the basic concept in bet365 coupon code theory，Should have objective factual neutrality，Value judgments about setting bet365 coupon code should not be stored。The reason why bet365 coupon code can be set on the object，Depending on the desirability of the object、Controllability and adequacy。In terms of intellectual property bet365 coupon code，Information mobility and externalities，The explanation of its legitimacy must consider the entire natural law theory: preemption, that is, control, is the source of natural bet365 coupon code，Labor is the basis for the ownership of bet365 coupon code。On the object of independent control，Generate general intellectual property bet365 coupon code；On the object controlled by the power of law，Typed legal bet365 coupon code。General bet365 coupon code favor natural bet365 coupon code，Need to increase protection strength，But its control can no longer be strengthened by the force of law。Typed legal bet365 coupon code based on utilitarianism，On the one hand, we must strictly abide by the legal boundaries of bet365 coupon code，Strictly protect the covered objects and powers，On the other hand, the intensity of protection is lower than that of general bet365 coupon code。

　　Keywords:Intellectual Property Boundaries Object of civil bet365 coupon code Message Controllability Legitimacy of intellectual property bet365 coupon code

　　Author Yi Jiming，Professor of Peking University Law School (Beijing 100871)；Li Chunhui，Associate Professor, Tianjin University Law School (Tianjin 300072)。