We can apply for a patent in the United States through a single national patent application, or we can use the pct patent application channel, but how to query the US patent application? What are the inquiry channels? This is an important question. As we all know, whether it is patent application or patent transfer, it is very necessary to know the patent status and patent literature. Let's take a closer look. How to inquire about American patent applications? What are the inquiry channels? The essence of the patent system is openness in exchange for protection, so patent management agencies in various countries are obliged to provide patent information to the public (most of them are free, but they dare not say anything in case of exotic feelings). Therefore, the official websites of patent administrations of major countries and organizations can carry out patent search. Patent retrieval can be simply divided into two categories: patent text retrieval and patent examination process examination. Moreover, many commercial or non-commercial non-governmental websites also provide comprehensive patent information retrieval. On the other hand, the quality of patent text information is also very important. Some commercial databases are very powerful in this respect, such as the famous derwent, which redevelops the patents of major countries, standardizes their expressions, and compiles them into WPI databases, which means paying for their use. In fact, we can find American patents through our existing patent platform. These self-created platforms have certain strengths, such as the National Intellectual Property Network and soopat Network, which is a patent platform that can search Chinese and foreign patent documents and provide downloads. Through this platform, you can search for American patents, and you can also search for the corresponding patent documents through the official website uspto. How to inquire about American patent applications? What are the inquiry channels? We are here to answer this question for you. If you have more questions about patent inquiry, you can continue to pay attention to Bajie Intellectual Property or contact us by phone.