1. First, go to the website of China National Intellectual Property Administration, China.
2. Secondly, click "Patent Retrieval and Query" and select "Patent Retrieval and Service System" in the newly popped-up page.
3. Then, enter the user name, password and verification code, and click "Patent Search".
4. Then select "General Search" in the pop-up page and enter "Mobile Phone" in the search box.
5. Finally, on the search results page, select View File Details, and on the document information page, select Download Document to complete the download.