There are a great many changes in patent law. Perhaps the greatest change in the law is the imminent roll-out of the Unified Patent Court (UPC) in Europe. Companies that do any significant business in the European Union are in the process of evaluating whether to opt their patents out of that system. This new court system potentially presents a seismic shift in the way patents are asserted worldwide.
Florence Atuluku provides a detailed overview of Nigerian Patent Law.