The mark applied for registration as a trademark must be distinctive, that is, it must be able to distinguish its products or services from those provided by others. Words, designs, letters, numbers, product shapes or their packaging can all be registered as trademarks in the UK, but certain signs are not allowed to be registered, including:

1. Offensive signs, such as obscene images, etc.;

2. A purely descriptive mark, which only describes the characteristics of the relevant product or service;

3. A misleading mark;

4. A mark that is too ordinary , has no distinctiveness, etc.;

5. It is a common name in the commercial field;

6. It bears the national flag and other specially protected signs, etc.