Patent Search Guide
Learn how to efficiently search and filter Chinese patent data
Cross-Language Search
CNIPA.AI supports bilingual Chinese-English search. You can enter search terms in English, and the system will automatically translate and match Chinese patent data. For example: • Enter 'electric vehicle battery' to find related patents • Enter '5G antenna' to find related patents Translation results are displayed above the search results for you to confirm search intent.
Filter Options
Use filters to precisely locate the patents you need: • Applicant: Enter company names like 'Huawei' or 'BYD' • IPC Classification: Enter codes like 'H01M' (batteries) or 'G06F' (computing) • Patent Type: Invention, Utility Model, Design • Publication Date: Set date range filters
Save Patents
After logging in, you can click the bookmark button on patent cards to save interesting patents. Saved patents can be viewed and managed in the Dashboard. This feature is particularly useful for patent landscape analysis and competitor monitoring.
Search Tips
• Use precise keywords: 'solid-state battery cathode material' is more accurate than 'battery' • Combined search: Use spaces to separate multiple keywords • Use IPC codes: Combine keywords with IPC codes for better accuracy • View related patents: Each patent detail page shows related patent recommendations