One thing is inevitable in patent application, and that is official fees. For details, please check the published charging standard. If you apply for fee reduction, part of it can be exempted from 70%. Invention patents need to be applied, made public, examined and authorized. The total official fee for this basic component is less than 4,000, which will be collected in stages.
Then the agency fee is invention 5000, utility model 2500 and design 1000.
There is a "priority examination of invention patent application" for inventions, which can speed up the application for authorization. The specific cost depends on what agency you are looking for to issue a report.