English papers are part of the patent content and will be searched.

Patent duplicate checking refers to patent novelty checking. The purpose of patent novelty retrieval is to search the published literature to see if there is any existing technology with the same or similar contents as the patent. If there is, the patent is not novel and no application is needed. If not, the patent is novel. Relevant personnel should know what materials need to be submitted when applying for a patent, write them as soon as possible, and submit them to the Patent Office for circulation.