State Intellectual Property Office website and patent search platform.
1. State Intellectual Property Office website: You can visit the official website of the State Intellectual Property Office. This website will provide download services for patent databases and patent authorization announcements. You can register an account on its website and use the relevant Search function to retrieve and download required patent grant announcements.
2. Patent search platform: In addition to the official website of the State Intellectual Property Office, there are also some third-party patent search platforms that also provide download services for patent authorization announcements. You can register accounts on these platforms to conduct Patent search and directly download the corresponding patent authorization announcement.