1, you need to know where your patent innovation is, and then write it according to the file format of the State Patent Office. This is not something that an ordinary shop assistant can do. At least you should have a patent agent's certificate or have a systematic study of patent writing. There is still a big difference between what professionals write and what they write well. If you can't authorize it, it's still rubbish.
2. Personal patent application also involves reducing or exempting 85% of the patent fee, applying for a CPC account, installing a CPC certificate, uploading patent documents, and paying patent official fees.
You need to do these things yourself. If you don't do it well, you will do it for nothing. Without authorization, you will have to answer in the second instance. If the final answer is not good, it will be rejected. If you refuse them, all the money you have done before will be in vain.
But if you find an agency, we will do all these things for you. All you need to do is pay the money, provide innovative materials and get the certificate.