Foursquare Has Been Trying (And Failing) To Trademark "Check-In" | TechCrunchFoursquare Has Been Trying (And Failing) To Trademark "Check-In" You’d be hard-pressed to find a hotter term in technology right now than “check-in.” Following Facebook’s entry into the location space with Places, it will soon be a term that hundreds of million of web users know well. But millions already do know it well thanks to Foursquare. While it seems likely that they weren’t the first to us
