The specific departments and institutions of trademark registration may vary from country to country or region. The following are some common trademark registration agencies:

1. USA: The United States Trademark Office (USPTO) is the main organization responsible for trademark registration.

2. Canada: The Intellectual Property Office of Canada (CIPO) is responsible for the registration and management of trademarks.

3. EU: The European Intellectual Property Office (EUIPO) is responsible for the trademark registration of EU member states.

4. China: China National Intellectual Property Administration, China (CNIPA) is the main trademark registration institution in China.

5. Britain: IntellectualPropertyOffice (IPO) is responsible for the registration and management of British trademarks.

These are just some common examples of trademark registration agencies. The specific institutions and departments may vary from country to country. If you are interested in registering a trademark, it is recommended to consult a local trademark registration agency or a professional lawyer for accurate guidance and requirements.

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