Legal Analysis: Valid. After the transferee obtained the exclusive right to use the trademark, it did not recognize the trademark license contract it had concluded with others before the transfer, and filed a lawsuit in court claiming that the trademark license contract signed by the transferor and others was invalid. After the trademark is transferred, the original license contract can be required to continue to be performed. If the new trademark owner does not recognize the license contract, the other party can safeguard its rights through legal proceedings.

Legal basis: "Interpretations of the People's Republic of China and the Supreme People's Court on Several Issues Concerning the Application of Law in the Trial of Civil Trademark Dispute Cases" Article 20 The transfer of a registered trademark shall not affect the trademark that was already in effect before the transfer. The validity of the license contract, unless otherwise agreed in the trademark license contract.

Article 43 of the "Trademark Law of the People's Republic of China" A trademark registrant may license others to use its registered trademark by signing a trademark license contract. The licensor shall supervise the quality of the goods used by the licensee using its registered trademark. The licensee shall ensure the quality of the goods using the registered trademark.

If you use someone else's registered trademark with permission, you must indicate the name of the licensee and the place of origin of the goods on the goods using the registered trademark.

When permitting others to use its registered trademark, the licensor shall submit its trademark use license to the Trademark Office for record, and the Trademark Office shall announce it. The trademark use license shall not be used against bona fide third parties without registration.