Madrid Protocol

The Madrid system for the international registration of marks, also conveniently known as the Madrid system or simply Madrid, is the primary international system for facilitating the registration of trademarks in multiple jurisdictions around the world.The Madrid system provides a centrally administered system of obtaining a bundle of trademark registrations in separate jurisdictions, all of which are based on an "international registration". Madrid provides a mechanism for obtaining trademark protection in many countries around the world, which is more effective than seeking protection separately in each individual country or jurisdiction of interest.
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The "Protocol Relating to the Madrid Agreement Concerning the International Registration of Marks" (Madrid Protocol) is an international treaty that allows a trademark owner to seek registration in any of the countries that have joined the Madrid Protocol by filing a single application, called an “international application.”

-- see Exam Guide 2-03 for more

Context: Trademark