A new Intellectual Property Rights (IPR) regime has ushered all over the world on the establishment of World Trade Organisation (WTO) and the Agreement incorporating the Trade Related Aspects of IPR (commonly known as TRIPS) on the 1st Jan 1995. Amongst the various species of IPR, patent is technologically oriented and a complicated subject. To derive maximum benefits from the patent system, a sound knowledge of the subject is very essential. In India, the ...