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USPTO Has a Free Patent API — Search 8M+ Patents (No Key Required)
USPTO 무료 특허 API — 800만 건 이상의 특허 검색 (API 키 불필요)
Why it matters
USPTO's PatentsView API provides free access to search 8M+ US patents since 1976 without requiring an API key or registration. The API supports use cases like prior art checks, competitive intelligence by company, and investment research through patent counting. A Python wrapper and CLI tool with CSV/JSON export are also available.
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USPTOPatentsView APIpatent searchcompetitive intelligencePython