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 can be searched in the following ways:
1. Open the soopat website and enter the corresponding keywords to search. You can also click the table on the right to search for more accurate retrieval.
2. China National Intellectual Property Administration website can also be used for searching.
Find an intellectual property agency, such as Bajie Intellectual Property.