This article provides an overview of the patent regime in Canada, with a focus on issues most relevant to the pharmaceutical industry. The process of applying for a patent is discussed, as well as enforcement and litigation. Recent developments in the case law dealing with patentability requirements - novelty, obviousness, utility and sufficiency - are reviewed. Finally, the impact of recently negotiated trade agreements on Canadian patent law is addressed. In this article, we aim to provide an overview of the patent regime in Canada, with a focus on issues that are particularly relevant to the pharmaceutical industry.