Touchscreen Gestures [NPE] filed suit against LG Electronics, alleging that LG’s smartphones and tablets infringe four patents related to touchscreens that identify tap and drag gestures.  Touchscreen previously filed four separate patent infringement suits against Apple, HTC, RIM, and Samsung in April 2011. RPX reviewed the patents-in-suit as part of an open market opportunity (Sentelic) in February 2012.  7/2, Eastern District of Texas, no judge yet assigned, 6:2012cv00428.