Are there any skills or precautions for patent novelty retrieval? Because if I don't carefully check the novelty before writing a patent application, after writing it, it will be because

Before you report it, check it yourself. You can check it on China National Intellectual Property Administration patent search website or soopat, and enter keywords. However, you are not allowed to check it yourself, or find an information office or firm. I'll check it back when you report the invention to the State Administration for substantive examination. After checking that the creativity is not enough, you will not be authorized. You can apply for a patent evaluation report after you declare innovation and appearance. This report is still useful.