CNIPA China Patent Search — 专利检索 API
Pricing
from $100.00 / 1,000 patents
Go to Apify Store
CNIPA China Patent Search — 专利检索 API
Search China CNIPA patents with abstracts, claims and citations. Clean JSON for analysts, quants and AI agents.
CNIPA China Patent Search — 专利检索 API
Pricing
from $100.00 / 1,000 patents
Search China CNIPA patents with abstracts, claims and citations. Clean JSON for analysts, quants and AI agents.
Free-text keyword search across patent title + abstract. Accepts English OR Chinese (mixed allowed). Examples: 'lithium battery', '锂电池', 'solid state drive', 'gene editing', '半导体'. Patents.google.com indexes CNIPA records in BOTH English machine-translated title/abstract and the original Chinese, so an English keyword still matches a Chinese patent. Leave blank to pull all patents in the date window narrowed by applicant / IPC / status.
Restrict results to a specific Chinese applicant (company, university, institute). Accepts partial English or Chinese name (case-insensitive). Examples: 'Huawei', 'BYD', 'CATL', '宁德时代', 'Tsinghua University', '清华大学', 'CAS' (Chinese Academy of Sciences). Especially useful for monitoring a single Chinese competitor's filing cadence or running a Chinese deep-tech portfolio inventory for M&A diligence.
Restrict results to patents naming a specific inventor. Accepts English or Chinese name. Examples: 'Robin Li', '李彦宏', 'Jack Ma'. Useful for following a known prolific researcher across employer changes (common in Chinese hardware / AI labs).
International Patent Classification (IPC) symbol — the global standard used by CNIPA, USPTO, EPO and WIPO. Use the section letter (e.g. 'H' = Electricity), the 4-character class (e.g. 'H01M' = batteries, 'G06N' = AI/ML, 'C12N' = micro-organisms / genetic engineering), or a full subgroup (e.g. 'H01M10/0525' = lithium secondary cells). See cpc-tooltip below. Leave blank for any class.
Filter by filing date at CNIPA. 'month' = trailing 30 days; 'quarter' = trailing 90 days; 'year' = trailing 365 days; '3year' = trailing 3 years (most common for competitive intel — long enough to catch quarterly cadence, short enough to filter noise); 'all' = no date filter (search the full CNIPA index back to 1985).
CNIPA patent lifecycle status. 'all' = no status filter (default). 'pending' = filed but not yet granted (the public application is published 18 months after filing). 'granted' = currently in force, fees paid. 'expired' = exclusive term ended (20 years for invention, 10 years for utility model and design from filing date). 'abandoned' = applicant let lapse before grant or before annuity payment. Note: the status field as exposed by Google Patents reflects the most recent legal-status event we can extract; for litigation-grade verification consult the CNIPA portal directly.
CNIPA recognises THREE distinct patent types: invention (highest bar, 20-year term, substantive examination), utility model (10-year term, only formal examination, lower bar but faster grant), and design (10-year term, covers shape / pattern / colour). Filter by type to focus your search. 'invention' filters to records with publication suffix A/B (e.g. CN101...A); 'utility' filters to U (CN20...U); 'design' filters to S (CN30...S); 'all' returns everything.
If true, when a patent has only a Chinese title (no machine-translated English title indexed by Google Patents), we'll fetch a best-effort English rendering via Google Translate's public web endpoint. Adds ~0.3s per untranslated record. Recommended for Anglophone IP teams, M&A diligence and competitive intelligence dashboards. Disable for raw Chinese-only output (cheaper and faster, useful for downstream native-Chinese tooling).
Maximum number of CNIPA patent records to push to the dataset. Each result page returns up to 100 patents; we auto-paginate to satisfy your limit. Typical competitive-intel workflows pull 50-500 per refresh. For a full CN-portfolio inventory of a single applicant set to 1000+. Hard ceiling 5000.
