1. Patent search website:
Using patents to search websites is the most common and direct way. Different countries and regions have special patent search websites, such as China National Intellectual Property Administration, USPTO and EPO. Through these websites, information such as keywords, inventors and patent numbers can be queried.
2. Patent retrieval database:
Patent search database is a professional online tool that provides more advanced and flexible search options. For example, Google Patent Search, Espacenet (European Patent Retrieval) and so on are commonly used patent retrieval databases, and users can more accurately screen and locate the required patent information.
3. Professional retrieval software:
Some professional patent retrieval software can provide more complex retrieval functions and analysis tools. These softwares are usually used in patent offices and professional search institutions, and may also be a choice for researchers who need a lot of patent information.
4. Patent retrieval service institutions:
Some professional organizations provide patent retrieval services, which can provide more accurate and customized patent retrieval according to users' needs. These institutions usually have professional retrieval personnel who can provide targeted retrieval services according to specific research directions.
5. Patent information disclosure platform:
Some countries have provided special patent information disclosure platforms, on which users can inquire patent information for free. These platforms usually provide basic patent information retrieval functions, which are suitable for initial query requirements.
When using these query methods, users can choose the most suitable method according to their own needs, and use keywords, classification numbers, inventors and other information to search, so as to obtain the required patent information.
The above contents were carefully arranged by Zhu Bajie. Com, I hope I can help you.