An increase in fees for patents are planned to take place on 6 April 2018: Increase to the application fee, and introduction of a 25% surcharge if it is not paid at the time of filing. Increase to the fees for search and substantive examination. Introduction of an excess claims fee (£20 for each claim over 25, payable at search). Introduction of an excess pages fee (£10 for each page of description over 35, payable at substantive examination). A £10 increase to renewal fees from year 12 onwards.