The appearance of joint trademarks is because the similarity of trademarks or commodities is often unclear, there is no strict judgment and identification standard, and it changes with time and place, so it is difficult to prevent others from registering or using similar trademarks on similar commodities. Once this happens, it is often difficult to cancel the registration of others or prohibit others from using it. So people register joint trademarks to prevent this from happening, which plays a preventive role. Some also forced manufacturers to register joint trademarks because of similar trademark infringement.
In addition, the purpose of registering joint trademarks is also to meet the needs of enterprise development and new product development. For powerful enterprises, there are many kinds of products, new products are constantly emerging and old products are constantly updated. Therefore, in business dealings, it is necessary to use a trademark similar to the original registered trademark on new products similar to Hu's goods, which can not only promote sales with old brands, but also show the elegance of new products, killing two birds with one stone. Joint trademarks can just meet this demand.
China's Trademark Law does not stipulate the content of joint trademarks, but many manufacturers actually apply joint strategies to give full play to the role of joint trademarks. In fact, not all joint trademarks are used, but China's Trademark Law stipulates that if a registered trademark is not used for three consecutive years, the Trademark Office has the right to cancel the registration of the trademark. This contradiction needs to be properly resolved. Before the existing laws are amended, these trademarks can be "used" through advertisements. According to the interpretation of the Trademark Office, as long as an advertisement is made in a officially published publication approved by the state, it is deemed that the advertised registered trademark has been "used".