This Argentine heavyweight “has excellent knowledge and sets international standards for the region.” The IP team offers a comprehensive registration and protection service, including litigation, with regard to patents, trade marks, copyright and domain names, border measures, transactional due diligence, technology transfer, data protection, advertising and entertainment law, Internet and IT, and unfair competition. Clients described the team as “efficient, responsive, up-to-date, proactive and a pleasure to work with,” although some raised concerns about fees and a slightly impersonal corporate style. The sizeable team of 45 legal and technical staff is able to handle several contentious issues or precautionary measures concurrently. This ability to undertake integrated and large-scale work is a notable competitive advantage for clients. In recent work highlights, the group represented Novartis in a case that established a precedent in terms of obtaining preliminary injunctions ex parte, and successfully defended Bell IP in a case requiring local competitor Bellcom to cease using its trade name, corporate name and trade mark. Martín Bensadon is universally acknowledged as a leader in his field: "He is the patents specialist par excellence!” He also handles patent litigation and is widely published. The "truly brilliant" Ivan Poli and his small team recently joined the IP department here, notably strengthening its patent practice. Iris Quadrio handles trade mark prosecution, assessment, portfolio management and pre-litigation work, particularly for the firm’s international clients. Co-head of the trade mark department Sergio Ellmann is "very skilled and responsive." His prestigious clientele includes Microsoft and Bristol-Myers Squibb. Gustavo Giay is also active on the trade mark side of the practice, and has "a great future." He specialises in enforcement work and anti-piracy, and is increasingly active in IT and data protection. He was involved in co-ordinating and presenting a submission to the Argentine Congress for modification of the nation's trade mark law, through his role as chair of the International Trademark Association's Anti-counterfeiting and Enforcement Subcommittee for Latin America and the Caribbean. Senior partner Miguel O'Farrell heads the IP litigation team. In a busy year, he handled the Bell case mentioned above, and defended McDonald’s franchisee Arcos Cordobeses against an alleged infringement case brought by food manufacturer Prodial. “We have never lost a case under his direction,” reported one satisfied client. Associate Ignacio Manuel Sanchez Echague impresses sources, with one client labelling him "a marvel."