How to check whether the patent has paid an annual fee from the Internet? In a hurry, online, etc.

If your company is applying electronically, you can enter directly from China Patent Inquiry System, and then you can find all the patents through inquiry.

If not, the Patent Office of China Intellectual Property Office can search one by one when it enters the charging information retrieval.

In addition, if the payment time is up, the State Knowledge Bureau will send you a payment notice (because your company has hundreds of patents).