Jonathan Clegg is a partner of Cleveland Scott York and has practised as a chartered trademark attorney for more than 25 years. His main areas of expertise are in the development and management of international trademark portfolios, including creating and implementing opposition strategies, maintaining commercially relevant and up-to-date protection, and handling contentious inter partes actions and appeals across many jurisdictions. He acts before the UK IP Office, the EU IP Office and WIPO across a full range of trademark issues, and is particularly experienced in UK and EU opposition and other contentious matters, in negotiating on behalf of his clients, and in handling international applications and related issues under the Madrid Protocol.

Jonathan is heavily involved in the International Trademark Association (INTA) and as well as currently chairing its leadership development committee, he has been a regular speaker for INTA for many years. He has also participated many times for WIPO as a speaker at its seminars on the Madrid System, and he has spoken for the organisation at Madrid-focused events in a number of countries. He is also a contributing author for Wolters Kluwer’s Concise European Trade Mark and Design Law. He is ranked in Chambers UK 2018 as a UK-wide top-tier trademark attorney.