To put it bluntly, it is not difficult for you to understand, but it is difficult for you not to understand. The procedure is very simple, that is, you apply first, and the state will review your application content and authorize it if there is no problem. In the middle, I will tell you the progress of the review, what problems exist in the review and what needs to be done, all of which are introduced in detail.
If it is difficult to apply for a patent, it is actually difficult to write a patent application document. Only by knowing the patent law and writing the application documents according to law can your application be authorized.