USPTO Has a Free Patent API — Search 8M+ Patents (No Key Required)

Did you know you can search every US patent since 1976 with a free API call? I didn't — until I needed to check if my idea was already patented. The API USPTO's PatentsView API is completely free. No API key, no registration. import requests def search_patents ( query , limit = 5 ): resp = requests . post ( ' https://api.patentsview.org/patents/query ' , json = { ' q ' : { ' _text_any ' : { ' patent_abstract ' : query }}, ' f ' : [ ' patent_number ' , ' patent_title ' , ' patent_date ' , ' assignee_organization ' , ' patent_abstract ' ], ' o ' : { ' per_page ' : limit }, ' s ' : [{ ' patent_date ' : ' desc ' }] }) return resp . json (). get ( ' patents ' , []) # What AI patents were filed recently? patents = search_patents ( ' artificial intelligence medical diagnosis ' ) for p in patents : company = p . get ( ' assignees ' , [{}])[ 0 ]. get ( ' assignee_organization ' , ' Individual ' ) print ( f " [ { p [ ' patent_number ' ] } ] { p [ ' patent_title ' ] } " ) print ( f " { p [ ' pate