tablet_pc.jpgIPNews® – Lenovo Inc., Barnes & Noble Inc., Amazon.com Inc. and other tablet makers are infringing Hopewell Culture & Design LLC’s patent for a double-click user interaction system, Hopewell said in a barrage of new lawsuits filed Friday.

B&N’s Nook, Amazon’s Kindle, Lenovo’s ThinkPad andIdea Pad, Coby Electronics Corp.’s Kyros, Viewsonic Corp.’s ViewBook and Viewpad