After a trademark is registered, you can make inquiries online in the following ways:

1. Website of the Trademark Registration Office: Many countries or regions have provided online trademark databases, and you can make inquiries on their official websites. These databases usually allow you to enter the trademark name, registration number or applicant information to search for registered trademarks.

2. international trademark database: international trademark databases, such as the GlobalBrandDatabase of the World Intellectual Property Organization (WIPO) or the European Trademark and Design Office of the European Union Intellectual Property Office (EUIPO), provide global trademark inquiry services.

3. Third-party trademark databases: In addition to the databases of official institutions, there are also some third-party trademark databases available for inquiry, such as TMview and Trademarkia. These databases collect trademark information from many countries or regions, which is convenient for you to make cross-border inquiries.

in trademark inquiry, you can use keywords such as trademark name, registration number and applicant name to search. The query results usually show the status, registration number, registration date, trademark holder and other related information of the trademark.

please note that the specific trademark query method and database may vary from country to country. It is recommended that you directly visit the website of the Trademark Registration Office of the target country or region or other reliable trademark databases to obtain accurate and up-to-date trademark information.

The above contents are carefully compiled by Pig Bajie. com, hoping to help you.