Our IP Team

‘I highly recommend Keith Smith and Olivia Mullooly for their professionalism and legal knowledge.’

The Legal 500, 2025

Portrait of Olivia Mullooly

Olivia Mullooly Partner and Head of the Intellectual Property team +353 1 920 1060 olivia.mullooly@arthurcox.com

Olivia is a qualified Irish and European Trade Mark Attorney, is head of our Intellectual Property team.

She advises clients across the full range of intellectual property matters. The sectors involved include pharmaceutical and biotechnology, food and beverage, technology and internet, third level education and research institutions, transport, energy, large retail and advertising and media and entertainment. Olivia speaks regularly on intellectual property at external conferences in Ireland, Europe and the US and Arthur Cox client events. Olivia is a partner in the Technology and Innovation group.


“Olivia Mullooly is a very trustworthy and approachable lawyer.”

Chambers Europe: Europe’s Leading Lawyers for Business, 2025

“Olivia Mullooly is extremely approachable and is always happy to discuss complex issues. She is exceptional in identifying potential problems, with an outstanding ability to present a range of solutions to any such issues, enabling clients to follow the optimum path for their business situation.”

The Legal 500: Europe, Middle East & Africa, 2024

Olivia's Biography
Portrait of Keith Smith

Keith Smith Litigation, Dispute Resolutions and Investigations +353 1 920 1137 keith.smith@arthurcox.com

Keith specialises in complex commercial litigation, dispute resolution and investigations, often with multinational aspects.

Keith has over twenty years’ experience in dealing with complex disputes across a range of practice areas including intellectual property, data protection and defamation. His IP experience includes:

  • Advising agritech client on trade mark infringement dispute with competitor;
  • Advising an international leisure and hospitality operator on trade mark infringement dispute;
  • Advising an international social media provider on defence of proceedings concerning content on its platform;
  • Advising a significant grocery retailer on passing off dispute with competitor;
  • Advising an international forecourt retailer on passing off dispute with a supplier.

“It’s a relief to have him by your side. He is reflective, considered and very tactical, as well as being very commercial. He’s very much solution-driven rather than process-driven.”

Chambers Europe: Europe's Leading Lawyers for Business, 2025

“Keith Smith is a trusted adviser who offers practical and commercial solutions. A tactical expert who works boundlessly to deliver for his client. Trust me, you want Keith in your corner.”

The Legal 500: Europe, Middle East & Africa, 2025

Keith's Biography

Previous endorsements:

Our IP team has been ranked in the following practice areas:

  • Trade mark disputes (2024) - Tier 1
  • IP transactions (2024) – Tier 3

IP Stars 2024 (Ireland)

A client describes the team: “the Arthur Cox team delivers exceptional value for money in the level of service they provide, particularly in handling complex matters.”

IP Stars 2023 (Ireland)

One client praises “the in-depth knowledge of the highly qualified team.” Chambers Europe: Europe’s Leading Lawyers for Business, 2020

One client remarks: “I work with Olivia Mullooly on any trade mark issues of my clients in Ireland. Olivia has great negotiation and communication skills. Olivia provides the same high standard that you expect when you work with the gold and silver circle firms in London.” The Legal 500: Europe, Middle East & Africa, 2020

A client praises the team’s ”strong legal knowledge and speedy response time.” Chambers Europe: Europe’s Leading Lawyers for Business, 2019

Arthur Cox Knowledge Articles
Arthur Cox Intellectual Property Group

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