Samsung sure knows how to build excitement leading up to their big Galaxy S4 smartphone event tomorrow evening. On March fourth we reported that the Galaxy S4 could introduce advanced eye-tracking for automatic scrolling based on a UK Telegraph report supported by a trademark that we discovered at the US Patent and Trademark Office (USPTO). Then this past Monday we discovered that Samsung had filed a new trademark for a logo relating to a 3D Camera. On Tuesday we discovered that Samsung filed for yet another trademark for "Chord" a new Group Sharing App and today, the clues keep pouring in. New Samsung trademark filings were published today by USPTO reveal two new trademarks that are absolutely relevant to tomorrow's event. For more on this see our Patent Bolt report.