https://www.epo.org/en/service-support/faq/searching-patents/asian-patent-information/china/filing-grant/can-i-apply

Can I apply for an invention patent and a utility model at the same time in China?

Yes, it is possible to file invention and utility model applications in parallel to obtain early protection in China. The applications must be filed by the same applicant, on the same day. They must relate to the same invention, and the fact that both applications were filed must be stated. Upon notification of grant of the patent, the utility model must be abandoned.

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