Microsoft hoped to further stifle competition from Android on Monday with a lawsuit targeting non-traditional sources. Following its belief that every Android device maker owes royalties, it sued Barnes & Noble and its manufacturers Foxconn and Inventec for allegedly infringing on patent rights through its Android-based Nook e-readers. It had unsuccessfully tried to negotiate a deal for more than a year and had "no choice" but to "defend our innovations and fulfill our responsibility," Deputy General Counsel Horacio Gutierrez claimed.