What websites are there for 20 18 patent inquiry?

What websites are there for 20 18 patent inquiry? According to incomplete statistics, countries lose the value of research projects because they have not consulted patent documents, resulting in billions of losses every year and even more indirect losses. During the Seventh Five-Year Plan period in China, about two-thirds of the nearly 10,000 projects of mass enterprises were repeated studies. Therefore, patent inquiry plays an important role in the growth of enterprises and the saving and improvement of global productivity. Here's a brief introduction to the website where 20 18 can make patent inquiries. What websites are there for 20 18 patent inquiry? 1, website of China National Intellectual Property Administration, China: (1) field search: the system provides 16 search fields, and users can choose from 16 search items 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 classification retrieval IPC classification navigation retrieval refers to the use of various departments, categories and subcategories in the IPC classification table to gradually query the category of interest, and click on the name of such category to get the patent query 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. 2.IncoPat scientific and technological innovation information platform 3. China Patent Information Network 4, Patent Exchange -patenthub Patent Query Engine 5, China Intellectual Property Network 6, innojoy Patent Search Engine 7, Baiteng. Com patent inquiry system 8, patent star-patent inquiry system 9, SOOPAT patent search engine 10, PatSnap wisdom bud patent inquiry system 20 18. The website where you can inquire about patents is as follows.