Trademark registration in Ireland is subject to the following restrictions:

1. Existence of similar trademarks:

- If it is too similar to a registered or registered trademark, the application for trademark registration may be rejected.

- The Trademark Registration Office will review the existing trademarks to ensure that the newly applied trademarks and existing trademarks will not be confused or misleading.

2. Unregisterable marks:

- Some marks are not suitable for trademark registration, such as purely descriptive words, general figures, national flags, national emblems and marks of international organizations.

- Signs that conflict with public interests, such as those that violate morality or public order, cannot be registered.

3. Logo of public domain:

- Logo of public domain, such as common words or symbols, usually cannot be exclusive and registered as trademarks.

- The Trademark Registration Office will evaluate the originality and uniqueness of trademarks to ensure that they will not interfere with the legitimate rights and interests of others.

Please note that the above are general restrictions on trademark registration, and the specific requirements and restrictions may be influenced by the regulations and guidance documents of the Irish Trademark Registration Office. When applying for trademark registration, it is recommended to consult the official website of the Intellectual Property Office of Ireland or a professional trademark agency to obtain the latest and accurate information.

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