There are many channels for patent inquiry, mainly in two ways. One is to help the patentee to inquire the patent number through some agencies, but this inquiry method requires expensive agency fees. So on the whole, I still advise you not to take this approach. Another query method is to query patent technology through the patent retrieval platform. For example, you can search for official website and national patent intellectual property rights on the search engine. After registering or logging in, click on the patent announcement, and then click on the patent search. You will find a link on the page and click directly to enter. Click Patent Search, then click General Search, and enter the company name or patent number in the input box. You can also click Advanced Search, but then you will enter more information.
The institutions that make national patent inquiries mainly include the State Patent Intellectual Property Office and WIPO websites, and they can also make free inquiries through Baiteng.com. Some of these institutions need to pay, and some are free. You can make the best policy according to your specific situation. But I still suggest that you go directly to the State Patent and Intellectual Property Office, which is relatively safe.
In short, the state still has certain support policies for patent applications. Generally, it will give policy or financial help. The patent right is also protected by the national patent law, and no one may infringe upon or use it without the consent of the patent applicant. So after we invented something, we should apply for a patent in time to prevent others from imitating it, so that our creative achievements can be protected by national laws.