Nature of the Case
High Court decision regarding the constitutionality of Section 3(d) of the 2005 Amendment to India’s Patent Law concerning the requirement for an invention to show an “enhanced efficacy” if based on a known substance. A pharmaceutical company’s modification of an existing drug was denied a patent in India for not meeting Section 3(d) requirements, and they subsequently petitioned the Madras High Court arguing that Section 3(d) was unclear, arbitrary, and discriminatory so as to be unconstitutional. The Court upheld Section 3(d).

