專利搜尋 API
依關鍵字、技術領域或申請人查詢全球專利文件。預先成型的 JSON,用於先前技術搜尋、IP 圖譜與 AI 驅動的研發分析。
Integration guide
Copy a snippet, replace your API key, run. Works in any HTTP client — examples below in cURL, JavaScript, and Python.
/api/search/patentshttps://www.apipick.com對全球專利文件的語意搜尋。回傳標題、摘要與可供下游 LLM 使用的來源 URL。
querystringrequiredNatural-language search query
max_num_resultsintegeroptional1–5, default 5
relevance_thresholdnumberoptional0.0–1.0 quality filter
country_codestringoptionalISO country code (e.g. US, GB)
start_datestringoptionalISO date YYYY-MM-DD
end_datestringoptionalISO date YYYY-MM-DD
curl -X POST "https://www.apipick.com/api/search/patents" \
-H "Content-Type: application/json" \
-H "x-api-key: YOUR_API_KEY" \
-d '{
"query": "Find prior art for neural network training optimization techniques",
"max_num_results": 5,
"country_code": "US",
"start_date": "2026-01-01"
}'{
"query": "Find prior art for neural network training optimization techniques",
"results": [
{
"title": "Example result",
"url": "https://example.com/article",
"snippet": "Short excerpt of the page content…",
"source_type": "web",
"published_at": "2026-04-15",
"score": 0.92
}
],
"result_count": 1,
"credits_used": 80,
"remaining_credits": 99
}Rate limits
Throttling is per API key, sliding 60-second window. Hit the limit and you get a clean 429 with a Retry-After header.
30req/min
Per API key, per endpoint. Sliding 60-second window.
3concurrent
Max simultaneous in-flight requests per API key.
X-RateLimit-LimitMaximum requests allowed per minuteX-RateLimit-RemainingRequests remaining in the current windowX-RateLimit-ResetSeconds until the current window resetsRetry-AfterSeconds to wait before retrying (only on 429)HTTP/1.1 429 Too Many Requests
Retry-After: 12
X-RateLimit-Limit: 30
X-RateLimit-Remaining: 0
X-RateLimit-Reset: 12
{
"error": "rate_limit_exceeded",
"message": "Rate limit exceeded: 30 requests/minute per API key. Retry after 12s.",
"retry_after": 12
}常見問題
涵蓋哪些專利局?
全球申請 — USPTO、EPO、WIPO PCT、JPO、KIPO、CNIPA 與主要國家局。搜尋執行於統一的語意專利索引上。
可以依申請人或發明人篩選嗎?
將其作為自然語言查詢的一部分傳入(例如 assignee:Tesla 電池熱管理)。語意索引可在查詢字串中解析實體式篩選。
可以依日期範圍篩選嗎?
可以。start_date / end_date(YYYY-MM-DD)依申請或公開日期篩選。
與 USPTO 直接搜尋相比定價如何?
USPTO 的公開搜尋免費但僅支援關鍵字,沒有語意排序。本 API 以每次呼叫 80 點(約 $0.08 使用者成本)執行跨司法管轄區的語意搜尋 — 在需要排序、可供 LLM 使用的結果時非常有用。
工具 schema?
GET /api/search/patents/tool-schema 回傳 OpenAI 函式與 Claude 工具使用定義。