If the trademark registrant changes the registration matters on his own when using the trademark, it may involve violations of trademark laws. The following are general principles for handling trademark registrants’ changes to registration matters on their own:

1. Violation of Trademark Law: If a trademark registrant changes registration matters on his own when using a trademark, he may violate the provisions of the Trademark Law. Trademark law usually requires that the use of a trademark be consistent with the matters registered, including the form, literal expression, scope of goods or services, etc. If the trademark registrant changes these matters on its own, it may be considered illegal.

2. Restrictions on trademark registration: Trademark registration usually limits the scope of use of the trademark. When a trademark registrant uses a trademark, it should use the trademark within the limited scope at the time of registration. If you change the registration matters on your own, it may exceed the scope of registration and may result in the trademark being invalid or revoked.

3. Legal liability: Trademark registrants who change registration matters on their own may face legal liability, including but not limited to infringement lawsuits filed by other trademark rights holders, trademark invalidation or cancellation applications, etc.

If the trademark registrant changes the registration matters on his own when using the trademark, it is recommended to take the following measures:

1. Comply with the provisions of the Trademark Law: The trademark registrant should abide by the provisions of the Trademark Law and follow the provisions of the Trademark Law. Matters concerning registration and restrictions on use of trademarks.

2. Modify the registration matters: If it is really necessary to modify the registration matters of the trademark, the trademark registrant should make the modification through legal channels, including applying to the Trademark Office or relevant agencies to change the registration matters.

3. Seek legal advice: If a trademark registrant faces changes in trademark registration matters, it is recommended to seek legal advice from a professional trademark agency or intellectual property lawyer to understand the specific legal regulations and countermeasures.

Trademark registrants should strictly abide by the provisions of the Trademark Law when using trademarks, and are not allowed to change registration matters on their own to avoid legal risks and disputes.

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