FT.com: When China joined the World Trade Organization seven years ago, the move was applauded by companies from other industrialized countries as a way of protecting their intellectual property rights—Chinese companies could no longer copy designs or technology and export the results abroad at drastically reduced prices, without, in theory, being taken to court.Now the shoe is on the other foot. A rising Chinese electronics company is suing technology groups Hewlett-Packard and Toshiba over alleged infringements of its patents. It is part of a growing trend in China of lawsuits from Chinese groups asserting their own intellectual property rights. Beijing Huaqi Information Digital Technology, better known by its brand name Aigo, has accused HP and Toshiba of violating six patents for USB Plus, a storage port technology used in many laptop computers.