It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.
WIPO GOLD is a free public resource which provides a one-stop gateway to WIPO’s global collections of searchable IP data. It aims to facilitate universal access to IP information.
World Intellectual Property Organization (WIPO)'s searchable database of Patent Cooperation Treaty (PCT) international patent applications. Includes published bibliographic data 1978 to present and text of description and claims for applications published in English, French, German or Spanish July 1998 to present.