2. The entrustment contract cannot involve some entrustment that is very close and inseparable with personal relationship, such as marriage registration. ....
3. Our country's laws have entrusted inventions, that is, inventions entrusted to others through contracts. For the attribution of such inventions, the Patent Law and the Contract Law adopt the principle of contract priority. If the contract is unclear or the ownership of rights is not stipulated in the contract, the law makes more favorable provisions for the trustee, that is, the right belongs to the party who has completed the invention and creation.
If you apply for a patent first, the patent belongs to you. If you have technical information and two or more applicants apply for a patent for the same invention-creation, the patent right will be granted to the first applicant.
Legal basis:
patent law of the people's republic of china
Article 8. Unless otherwise agreed, the right to apply for a patent belongs to an invention-creation completed in cooperation with two or more units or individuals, or an invention-creation entrusted by other units or individuals. After the application is approved, the applicant unit or individual shall be the patentee.
Article 9 Where two or more applicants apply for a patent for the same invention-creation, the patent right shall be granted to the first applicant.
I suggest you look at all the provisions of the patent law (not less than 70) on the following website:
/sipo/flfg/fljxzfg/t 200 1 1029 _ 19 19 . htm