1. Trademark Office official website: Trademark offices in various countries or regions will provide the function of inquiring about the classification of trademark registration on their official website. You can visit the official website of the Trademark Office in your country or region, and enter the trademark category or keyword in the search bar of the website to inquire about the classification of trademark registration.
2. Trademark database websites: In addition to official website of the Trademark Office, some trademark database websites also provide the function of trademark registration classification query. These websites collect trademark information from all over the world and provide classified search tools, which can be queried according to trademark categories and keywords.
3. Trademark agencies: Trademark agencies usually provide classified inquiry services for trademark registration. You can contact the local trademark agency and ask if they provide classified inquiry service, and then provide them with relevant information to help you inquire.
In a word, the classified inquiry of trademark registration can be conducted through official website of Trademark Office, website of trademark database and website of trademark agency.
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