MYLAN LABORATORIES LTD; RAMA, Shankar; VADALI, Lakshmana Rao; GORANTLA, Sarat Chandra Srikanth; MANUKONDA, Seshadri rao; POTLA, Venkata Srinivas Rao; VADLAMUDI, Mohana Vamsi Krishna; POTHANI, Jayaram; ANUPATI, Raja Reddy Patent: WO2013/118138 A1, 2013 ;