Plaintiff no.1- M/s Genentech Inc. claimed themselves to be theinnovators of the monoclonal antibody drug ‘Trastuzumab’ which ismanufactured by the plaintiff no.3- F. Hoffmann-La Roche and is beingmarketed in India ... by plaintiff no.2- Roche Products (India) Pvt. Ltd.under the brand name HERCEPTIN, HERCLON and BICELTIS. Thedrug ‘Trastuzumab’ is approved globally for treatment of cancer. Thesuit before the Delhi High Court came to be filed seeking to inter aliarestrain respondent No.3-M/s Reliance Life Sciences Pvt. Ltd. fromlaunching, marketing or selling ‘TrastuRel’, the biosimilar version of theappellants drug ‘Trastuzumab’