"A Chinese Internet company has sued Microsoft for patent infringement over its use of RSS in Windows Vista. Wang Jianbo, chairman of China E-commerce Info Tech Company, said his firm applied for a patent on RSS services in 2005 and was granted patent ZL 2005 1 0022721.3 in December 2007 from China's State Intellectual Property Office (SIPO). Wang says Microsoft adopted RSS technology in Vista without his company's authorisation. China E-commerce is based in Xi'an, Shaanxi Province, and the Xi'an Intermediate People's Court reportedly has accepted the case for adjudication. China E-commerce's lawsuit asks that Microsoft either stop infringing its RSS patent or stop selling Windows Vista in China."