when an enterprise marks more than two registered trademarks on the same product, they are generally used in the form of primary and secondary trademarks. Use the main trademark to establish and improve the reputation of various products, and use the sub trademark to imply the use, function, composition and quality of specific products. The two complement each other. That is, when the main trademark remains unchanged, each time a new product or new number is launched, another trademark is used on the basis of the main trademark to specify the purpose, function, composition, quality, etc. of the product. This is because the popularity of the main trademark is high, which makes it easier for consumers to accept and recognize the goods with sub trademarks.
these trademarks are registered by them. If they are not used for three consecutive years, they will be revoked. If you want to query and monitor trademarks, you can upload graphic trademarks directly on the social logo website. I hope it can help you