Two conditions.
The first is that Article 22 of the Patent Law stipulates that a patent must be novel, creative and practical. The second is that two or more people or units must jointly complete an invention. Make it clear whether you are willing to enjoy the same patent rights. If you meet these two conditions, you can apply to the relevant department.
The right to apply for a patent for a cooperative invention and creation belongs to all parties to the cooperation. If one party does not agree to apply for a patent, the other party or parties may not apply for a patent.