1. geographical scope of registration: the protection scope of trademark registration is usually limited to specific regions or countries. If a trademark is registered and protected only in a specific area, the use of similar trademarks by others in unregistered areas may not constitute infringement.
2. Similarity and confusion: Trademark registration mainly considers similarity and confusion of trademarks. The use of a trademark similar to or confused with a registered trademark by others may constitute infringement. The evaluation of similarity and confusion includes the appearance, pronunciation and meaning of the trademark.
3. Priority of trademark rights: Trademark registration usually gives priority to registrants. If others use a similar trademark after registration, it may constitute infringement, unless it can be proved that the registrant has used the trademark in related fields before registration.
4. Related industries and commodities: Trademark registration is usually only protected within a specific industry or commodity range. If others use similar trademarks in different industries or commodities, it does not constitute infringement.
To sum up, the main purpose of trademark registration is to ensure the rights and interests of trademark owners in the registered area and prevent others from using similar trademarks on the same or similar goods and causing confusion. However, the specific infringement problem needs to be evaluated according to the actual situation and relevant laws. It is suggested that professional intellectual property lawyers should be consulted to obtain accurate legal advice when trademark infringement is involved.
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