The place to inquire about patent authority is the Patent Office, which is authoritative. The essence of the patent system is openness in exchange for protection. Therefore, patent management agencies in all countries have the obligation to provide patent information to the public. So how to query the existing patent information? What are the specific steps? Let's give you a brief introduction. Inquiring about the existing patent information is mainly to inquire about similar patents on the patent retrieval website and then analyze them. The specific steps are as follows: 1. Determine keywords according to the technical scheme you want to apply for; 2. Search the existing patents on the patent search website according to keywords, and analyze whether it is similar to the one you want to apply for. Patent search websites and searches can be carried out in the following ways: 1. Open the soopat website, enter the corresponding keywords to search, or click the table on the right to search for more accurate search; 2. China National Intellectual Property Administration website can also be used for retrieval.