1. Disputes arising from conflicts between registered trademarks and earlier registered trademarks. This kind of dispute usually occurs between two identical or similar trademarks used on the same or similar goods. For this kind of trademark dispute, China's Trademark Law stipulates a dispute period of five years from the date of registration.
2. Trademark disputes refer to disputes caused by trademark registration violating the prohibitive norms required by law for registered trademarks, or registration applicants obtaining registration by deception or other improper means. The so-called violation of the prohibitive norms of trademark registration mainly means that the trademark pattern is not obvious, which violates public order and good customs or good customs. For the second kind of trademark dispute, China's Trademark Law does not stipulate the time limit for filing trademark disputes. In other words, this trademark dispute can be filed at any time, and there is no time limit.