How to inquire about patent application?

Many people think that the preparation of documents and materials for patent application is very important, but they ignore the inquiry and retrieval of patents before patent application. Query and retrieval before patent application is very important. Before applying for a patent, the applicant must check his own patent to see if any similar patent has been applied for. The following small series will tell you how to inquire about patent applications. How to query the patent application 1? How to inquire about patent application? There are three steps in the process of patent inquiry, but the process really needs a lot of patience. From the scope of inquiry, patent inquiry needs to be carried out on a global scale, and the objects of inquiry include all kinds of public publications at home and abroad, and the inquiry results are required to be accurate. From the query content, we need to query the patent name, the main content of the patent, the innovation of the patent and so on. 2. Patent inquiry website 1, China National Intellectual Property Administration website, China: (1) field search: the system provides 16 search fields, and users can choose from 16 search portals according to known conditions, and can conduct single-field search or multi-field limited search. Each search field can be searched by fuzzy method, and any letter, number or word can be represented by% (which must be in half-width format); Multiple fuzzy character can be used, and that first position can be omit anywhere the search string is entered. (2)IPC classified retrieval IPC classified navigation retrieval refers to the use of various departments, categories and subcategories in the IPC category table to gradually query the category of interest, and click on the name of such category to get the patent retrieval results under this category (except design). IPC classified navigation retrieval also provides keyword retrieval, that is, keyword retrieval is carried out within the scope of invention names and abstracts under a certain category to improve the retrieval accuracy.