This In Focus provides an overview of the complex procedures governing pharmaceutical patent disputes. FDA Regulation of Drugs and Biologics.Learn strategies to effectively handle patent infringement issues in the pharmaceutical industry and safeguard your innovations. This article discusses two key questions for both the company launching a new product and patent owners. Our team prepares, files, and prosecutes patent, trademark, service mark, and copyright applications. In short, a review of the decisions of the Federal Circuit evaluating the (non)obviousness of pharmaceutical patents in infringement actions. Patent litigation is the process through which one party sues another for making allegedly unlawful claims upon their patented invention. Patent infringement simply refers to the use of someone else's Patented invention without authorization. Though typically addressed through litigation related to patent validity (i.e. Patent infringement occurs when someone makes, uses, sells, or offers for sale a patented invention without the owner's permission.