The negotiations on the introduction of European community patent, or a European patent with unitary effect, are at a far-advanced stage. A group of eighteen EU member states, including the Netherlands, will become subject to uniform patent regulations. As soon as the community patent comes into effect, there is a period of one month after grant of the patent to choose between a “classical” European patent, which as noted above breaks apart into national rights, and a European patent with unitary effect. Various considerations will be taken account in making this choice, such as the level of annual fees and the possibility of an opposition or revocation action (see other FAQs) being instituted by third parties. When the time comes to make this choice, it is advisable to make the best choice for the patent in question in consultation with a patent attorney.