What are the criteria for applying for invention patents in Shenzhen?

What are the criteria for Shenzhen to apply for invention patents? Inventors can submit relevant patent applications for their own invention products, but there are relevant standards for invention patent applications in law. As an innovative city in science and technology, Shenzhen has more and more applications for invention patents. What are the criteria for applying for invention patents in Shenzhen? According to the Patent Law of China, an invention granted a patent right should be novel, creative and practical. Novelty means that the invention does not belong to the prior art; Before the filing date, no unit or individual has filed an application for the same invention with the patent administration department of the State Council, and it is recorded in the patent application documents published or announced after the filing date. Creativity means that the invention has outstanding substantive characteristics and remarkable progress compared with the prior art before the filing date. Practicality means that the invention can be manufactured or used and can produce positive effects.