a trademark is a distinctive symbol that is adopted by producers and operators on the goods or services they produce, manufacture, process, select or distribute, and distinguishes the sources of goods or services. A patent is generally a document issued by a government agency or a regional organization representing several countries according to the application. This document records the contents of the invention and creation, and in a certain period of time, it produces such a legal state that the patented invention and creation can only be implemented by others with the permission of the patentee. In China, patents are divided into three types: invention, utility model and design. An invention patent refers to a new technical scheme proposed for a product, method or its improvement.