20The services of registered patent agents (within the meaning of Part V of the [1988 c. 48.] Copyright, Designs and Patents Act 1988).
21The services of persons carrying on for gain in the United Kingdom the business of acting as agents or other representatives for or obtaining European patents or for the purpose of conducting proceedings in relation to applications for or otherwise in connection with such patents before the European Patent Office or the comptroller and whose names appear on the European list (within the meaning of Part V of the Copyright, Designs and Patents Act 1988).