1. Trademark Office official website: Different countries or regions have specialized trademark registration agencies. You can visit the official website of the agency, and usually provide a trademark registration database or online query tool. For example, in China, you can visit the official website of China National Intellectual Property Administration.
2. International trademark registration agency: If you want to inquire about international trademark registration, you can visit the website of the World Intellectual Property Organization (WIPO). WIPO is responsible for the management of the Madrid Agreement and the Detailed Rules for the Implementation of the Madrid Agreement, which are important documents for international trademark registration.
3. Online trademark database: In addition to the websites of official institutions, there are also some commercial online trademark databases available for inquiry. Some of these databases include the Trademark Electronic Search System (TESS) (United States Patent and Trademark Office), the European Intellectual Property Office (EUIPO) (European Intellectual Property Office) and the global brand database (World Intellectual Property Organization).
According to your country or region and the trademark registration situation you are concerned about, choose the appropriate inquiry channel for trademark registration inquiry. Please note that different countries may have different trademark registration information, and the details of the query results may also be different.
I hope the above information is helpful to you. If you have any other questions, please feel free to ask.
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