Pat Treacy

Pat Treacy is a partner in the Competition team at Bristows LLP. Pat has specialised in EU law and competition law for almost 30 years and has been involved in landmark cases at EU and national level. In addition to her expertise across the range of competition law, she has particular strengths in advising on the complex legal and policy issues arising where competition law and intellectual property law intersect. Consequently, clients in high technology sectors including life sciences and TMT seek her advice regularly. Pat represents clients before the competition authorities and the courts, whilst also advising on competition law issues in complex agreements (including settlement, R&D and licensing agreements). Pat advises many of the Firm's clients on the competition law responsibilities affecting dominant companies. She and her team assist clients with competition compliance programmes and preparation for "dawn raids". Pat is a member of the Competition Law Association; the British Institute of International and Comparative Law; and the Antitrust section of the American Bar Association. She is on the editorial board of the Journal of Intellectual Property Law and Practice. Pat lectures and writes widely on topical issues. She also teaches the competition law module on the University of Oxford Postgraduate Diploma in Intellectual Property Law and Practice course.

Contributed to


Character merchandising—IP and competition law issues
Practice notes

This Practice Note sets out the intellectual property and competition law issues which may arise in connection with character merchandising (ie the practice of licensing the name or likeness of a character for use in the marketing of goods or services, which will usually require the licensing of trade marks and/or copyright). It considers issues which may arise pursuant to Articles 101 and 102 of the Treaty on the Functioning of the European Union (or in the UK, Chapter I of the Competition Act 1998), as well as possible block exemptions or individual exemptions that might apply. It also considers the interaction between competition law and the tort of passing off.

Competition law in copyright exploitation
Practice notes

This Practice Note examines competition law in relation to copyright exploitation. It covers exhaustion of rights and parallel trade within the EEA including an examination of Article 101 TFEU and copyright licensing. Vertical agreements and exclusive licences are considered covering absolute territorial protection, geo-blocking, tying and bundling, as are horizontal agreements covering collective licensing and joint selling. The relationship between copyright exploitation and Article 102 TFEU is also considered.

Internet of Things (IoT)—key legal issues
Practice notes

The Internet of Things is the term given to everyday objects, smart devices and connected devices connected to the internet. This Practice Note provides context and an explanation of the Internet of Things or IoT, providing an introduction to the technology, current and future implementations and key legal issues related to its implementation.

Standard essential patents and FRAND licensing
Practice notes

This Practice Note addresses the role played by standard essential patents (SEPs) and fair, reasonable and non-discriminatory (FRAND) licensing in patent litigation before the Courts of England and Wales (the English Courts). In particular, this Practice Note considers the legal landscape following the UK Supreme Court decision handed down on 26 August 2020 in the conjoined Unwired Planet and Conversant appeals and the practical implications of this decision.

Practice areas


  • Contributing Author


  • MA Law, University of Cambridge

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