1. Ensure that the trademark is registered in relevant categories: the trademark needs to be used in multiple categories, and ensure that it is registered in all relevant categories.
2. Ensure that trademarks are associated with goods or services: trademarks are associated with goods or services provided. For example, if a trademark is used in the clothing industry, it should be related to clothing, not food or other industries.
3. Maintain the uniqueness and identifiability of the trademark: in order to make the trademark unique and easy to identify in the market, ensure that the trademark has unique design and elements.