USPTO Patent Public Search is the official free tool for searching US patents and published applications by keyword, classification code, inventor or assignee. It replaced the USPTO's older PatFT and AppFT search tools and covers the full US patent database.
We use essential cookies to make our site work. 🍪 With your consent, we may also use non-essential cookies to improve user experience and analyze website traffic. By clicking “Accept,” you agree to our website's cookie use as described in our Cookie Policy. You can change your cookie settings at any time by clicking “Preferences.”