Where to do the appraisal of invention patent achievements?

First of all, the invention is unauthorized, which proves that it has not been compared and analyzed by the National Novelty Retrieval Bureau.

Therefore, it is necessary to carry out novelty evaluation. I don't know where you are from. What is the level of this requirement?

Specifically, you contact a qualified novelty retrieval unit and issue you a sci-tech novelty retrieval report. The conclusion is that your patent is novel and creative.