Domestic patent download steps are as follows:
(1) Open Baidu and enter: China Patent Information Center. Go to and find the homepage of China Patent Information Network. Pay attention to official website entering China patent information network. Don't click on the homepage of "Patent Inquiry System" and "China National Intellectual Property Administration Patent Office".
(2) In the patent search on the left, select China patent or world patent. Select and click the search key. Go to the next page.
(3) After clicking, you will enter the following patent star interface. Enter the keyword of the patent you want to query, select China patent or world patent, and then click the search key. Please note that different keywords should be separated by the space bar.
(4) After entering the patent interface, select the patent you want to view and click the View button.
(5) In the patent interface, you can view the project information, full-text PDF, abstract drawings, specifications, claims, legal status, patents of the same subject, etc. Click on the full-text PDF to see the specific contents of the patent.
(6) Full-text PDF is generally not downloadable. But you can put the mouse on the interface of full-text PDF and click the right mouse button to select Print. There are such free patents.