Hello:
There is no uniform standard for patent agency fees across the country. It is set independently by each province and city. It is recommended that you check with the local price bureau or the patent agency of your choice.
The following standards are for reference only:
Qingdao: The basic agency fee for invention patents is 2,000 yuan per item, and the basic agency fee for utility model patents is 1,500 yuan per item. The basic agency fee for design patents is 600 yuan per piece.
Hope the answer is helpful to you