What are the inquiry methods of patent agencies?

Mainly in the patent search website to query similar patents, re-analysis. The specific steps are: 1, determine keywords according to the technical scheme you want to apply for; 2. Search for existing patents on the patent search website according to keywords, and analyze whether it is similar to the patent you want to apply for. Patent search websites and searches can be conducted in the following ways: 1, open soopat website/,enter 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 searching.