Copaxone (glatiramer acetate) is a blockbuster drug for the treatment of multiple sclerosis, created by Yeda Research and Development Co Ltd. The patents that cover Copaxone, including the process for its preparation, have been extensively litigated around the globe, and in India the patent for the preparation of Copaxone expires on May 23, 2015. For this process patent, several proceedings are currently pending before various bodies in India, including the Delhi High Court, the Intellectual Property Appellate Board and the Indian Patent Office (IPO).