[US Patent & Trademark Office, Patent Full Text and Image Database].1976 to present [full-text] 1790 to present [entire database]. Patents from 1790 through 1975 are searchable only by Issue Date, Patent Number, and Current Classification (US, IPC, or CPC).
Some specific ways to access filings based on time, type, or other categories. Full Text Search. Find keywords and phrases in more than 20 years of EDGAR filings, and filter by date, company, person, filing category, or location.
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Use Espacenet patent search to check for published patent applications and registered patents. The database includes both worldwide and UK patents and details about
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Patent Search (Search for Patents) Learn about Patent Classification Filing Online Checking application status Responding to Office actions Patent Trial and Appeal Board Petitions.
