Legal analysis: The certificate of intellectual property ownership is a document proving that the intellectual property claimed by the complaining party has been authorized or registered. The certification document has the seal of the relevant agency, such as a trademark registration certificate, patent certificate, and copyright registration certificate. wait. If the trademark is renewed or changed, documents proving the renewal or change must be provided; if the patent owner is changed or the patent is transferred, documents proving the change or transfer must also be provided.

Legal basis: Article 40 of the Trademark Law of the People's Republic of China. If a registered trademark expires and needs to be continued to be used, the trademark registrant shall comply with the regulations within twelve months before expiration. Go through the renewal procedures; if you fail to do so during this period, you can be given a six-month extension period. Each renewal of registration is valid for ten years, starting from the day after the expiration of the previous term of validity of the trademark. If renewal procedures are not completed upon expiration, the registered trademark will be cancelled. The Trademark Office shall announce the renewal of registered trademarks.