Trademark is a special legal term. A brand or a part of a brand is called a "trademark" after it is registered by the relevant government departments according to law. A trademark is a mark used to distinguish one operator's brand or service from other operators' goods or services.

2. copyright

Copyright is a legal term used to express the rights enjoyed by the creator because of his literary and artistic works. Copyright is the legal ownership of the right to copy computer programs, literary works, musical works, photos, games, movies, etc. Copyright only protects the expression of ideas, but not the ideas themselves

III. Patents

Generally, a patent is a document issued by a government agency or a regional organization representing several countries upon application, which records the contents of inventions and creates a legal state in a certain period of time, that is, a 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.