Derived from the Paris Convention for the Protection of Industrial Property. The term well-known trademark comes from the Paris Convention for the Protection of Industrial Property (hereinafter referred to as the Paris Convention). The protection of well-known trademarks under the Paris Convention is limited to prohibiting others from using trademarks that are identical or similar to the well-known trademark in the same or similar industries as the trademark owner. Register and use. Trademark is a specialized legal term. After a brand or part of a brand is registered by the relevant government departments in accordance with the law, it is called a "trademark".