CNIPA China Patent Search — 专利检索 API
Pricing
from $100.00 / 1,000 patents
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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.
You can access the CNIPA China Patent Search — 专利检索 API programmatically from your own applications by using the Apify API. You can also choose the language preference from below. To use the Apify API, you’ll need an Apify account and your API token, found in Integrations settings in Apify Console.
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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.", "default": "" }, "applicant": { "title": "Applicant / assignee filter (optional)", "type": "string", "description": "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.", "default": "" }, "inventor": { "title": "Inventor filter (optional)", "type": "string", "description": "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).", "default": "" }, "ipc_class": { "title": "IPC class filter (optional)", "type": "string", "description": "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.", "default": "" }, "date_range": { "title": "Date range (filing-date window)", "enum": [ "month", "quarter", "year", "3year", "all" ], "type": "string", "description": "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).", "default": "year" }, "status": { "title": "Patent status filter", "enum": [ "all", "pending", "granted", "expired", "abandoned" ], "type": "string", "description": "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.", "default": "all" }, "patent_type": { "title": "Patent type filter", "enum": [ "all", "invention", "utility", "design" ], "type": "string", "description": "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.", "default": "all" }, "translate_titles": { "title": "Translate Chinese-only titles to English", "type": "boolean", "description": "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).", "default": true }, "maxResults": { "title": "Max patent records to return", "minimum": 1, "maximum": 5000, "type": "integer", "description": "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.", "default": 50 } } }, "runsResponseSchema": { "type": "object", "properties": { "data": { "type": "object", "properties": { "id": { "type": "string" }, "actId": { "type": "string" }, "userId": { "type": "string" }, "startedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "finishedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "status": { "type": "string", "example": "READY" }, "meta": { "type": "object", "properties": { "origin": { "type": "string", "example": "API" }, "userAgent": { "type": "string" } } }, "stats": { "type": "object", "properties": { "inputBodyLen": { "type": "integer", "example": 2000 }, "rebootCount": { "type": "integer", "example": 0 }, "restartCount": { "type": "integer", "example": 0 }, "resurrectCount": { "type": "integer", "example": 0 }, "computeUnits": { "type": "integer", "example": 0 } } }, "options": { "type": "object", "properties": { "build": { "type": "string", "example": "latest" }, "timeoutSecs": { "type": "integer", "example": 300 }, "memoryMbytes": { "type": "integer", "example": 1024 }, "diskMbytes": { "type": "integer", "example": 2048 } } }, "buildId": { "type": "string" }, "defaultKeyValueStoreId": { "type": "string" }, "defaultDatasetId": { "type": "string" }, "defaultRequestQueueId": { "type": "string" }, "buildNumber": { "type": "string", "example": "1.0.0" }, "containerUrl": { "type": "string" }, "usage": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "integer", "example": 1 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } }, "usageTotalUsd": { "type": "number", "example": 0.00005 }, "usageUsd": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "number", "example": 0.00005 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } } } } } } } }}OpenAPI is a standard for designing and describing RESTful APIs, allowing developers to define API structure, endpoints, and data formats in a machine-readable way. 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