(1) field retrieval:
The system provides 16 retrieval fields. Users can choose from 16 search items according to known conditions, and can perform single-field search or multi-field limited search. Each search field can be searched by module, where% (must be in half-width format) represents any letter, number or word; A plurality of modular characters can be used, and the first position can be omitted at any position where the search string is input.
(2)IPC classification 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 this 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.
2.IncoPat scientific and technological innovation information platform
3. China Patent Information Network
4. Patent Exchange-patenthub Patent Search Engine
5. China Intellectual Property Network
6.innojoy patent search engine
7.Baiteng.com patent retrieval system.
8. Patent Star-Patent Retrieval System
9.SOOPAT patent search engine
10, PatSnap intelligent bud patent retrieval system
What are the ways of patent retrieval?
There are three ways of patent retrieval: paper retrieval, software retrieval and online retrieval.
Paper carrier is the main form of patent literature and the main object of retrieval. Generally speaking, the materials searched by paper retrieval are the least likely to make mistakes and the most evidential. But in the process of patent retrieval, it is inefficient, time-consuming and laborious, and it is easy to be lost and damaged. In addition, due to the long printing and distribution cycle, it is difficult to retrieve the latest materials.
Legal basis: Article 69 of the Patent Law shall not be regarded as patent infringement under any of the following circumstances:
(1) The patentee or a unit or individual licensed by the patentee uses, promises to sell, sells or imports its patented products or products directly obtained by patented methods;
(2) Having manufactured the same product, used the same method or made necessary preparations for its manufacture and use before the patent application date, and continuing to manufacture and use it only within the original scope;
(3) Foreign means of transport temporarily passing through China's territorial waters and airspace use the relevant patents in their devices and equipment for their own needs in accordance with the agreements signed between their countries and China or international treaties to which they are both parties, or on the principle of reciprocity;
(four) the use of relevant patents for scientific research and experiments;
(5) manufacturing, using or importing patented drugs or patented medical devices for the purpose of providing information required for administrative examination and approval, or manufacturing or importing patented drugs or patented medical devices exclusively for them.