How to charge the agency fee for patented products?

First of all, what you mean by "patented product patent" is a patent with a patent certificate granted by China Patent Office?

If it has been authorized, does it mean that you have an authorized patent for commercial development?

If so, I'm not sure, because it is more like a commercial thing than a patent. But I estimate that there is no scope for this fee.

If there is no authorization, but you have a product and want to apply for a national patent, then you need to find someone to apply for a patent instead of developing it. The agency fee is different in different regions, different agencies and different application types.

Generally speaking, the fees charged by good agencies in big cities such as Beijing and Shanghai are relatively high, about 1W for inventions and about 5,000 for new models, excluding the fees paid to the patent office.

The second and third tier cities invented 5000 and the new 3000.

If you have any questions, please contact me.