More than 50 people...rallied at the Commerce Ministry yesterday to lobby the Intellectual Property Department not to accept a complaint from pharmaceutical companies that oppose compulsory licensing...Legal consultants for Merck & Co...filed a petition to the Intellectual Property Department on whether the Public Health Ministry had breached patent laws...The Pharmaceutical Research and Manufacturers' Association of Thailand (PReMA) also issued a statement yesterday against the move, saying..."Individual pharmaceutical companies will certainly consider the very significant risk this policy poses when deciding whether to bring their latest medicines to the Thai market..." [refers to Abbott Laboratories' Kaletra, Sanofi-Aventis & Bristol-Myers Squibb's Plavix]