The long‑running Katy Perry trademark dispute has culminated in a highly anticipated High Court decision with significant implications for Australian trade mark law. In this timely seminar, Odette Gourley provides a clear and practical analysis of what the High Court decided and whether the door remains open for any further litigation. Explore how the decision reshapes the substantive grounds for trade mark cancellation, including how the law has changed. Odette will also unpack the High Court’s treatment of the discretion not to cancel a trademark, examining how it operates in practice and what the decision means for advising clients on registration, enforcement and risk.
Wednesday, 3 June 2026
Chair:
Kellie Stonier, Principal Lawyer, Stonier IP; Best Lawyers 2026, Intellectual Property Law
12.30pm to 1.30pm Katy Perry and the High Court – the Final Word?
- What did the High Court decide
- Will there be a further round of litigation and what will be the issues
- Substantive grounds for trade mark cancellation – has the law changed and if so how?
- Discretion not to cancel – how does it work and what effect will this have on your advice to clients?
Presented by Odette Gourley, Partner, Corrs Chambers Westgarth; Recommended Leading Contentious Intellectual Property NSW Lawyers, Doyle’s Guide
Description
Attend and earn 1 CPD unit in Substantive Law
This program is applicable to practitioners from all States & Territories
Presenters
Odette Gourley, Partner, Corrs Chambers WestgarthOdette Gourley is a senior partner and market leading lawyer in intellectual property law and related areas. In the course of her substantial career, Odette has been in leading trade mark and patent cases including in the High Court: Gallo Barefoot (trade marks), Hassle v Alphapharm (patents) and Peters Ice Cream (restraint of trade); in the Federal Court: AstraZeneca (doctor advertising of drugs); Winnebago (user principle damages for IP infringement), Johnsons Holiday Skin (substantiation of advertising claims by consumer research), Roche (scheduling scheme for therapeutic products), Novo v Cipla and Otsuka v Sun Pharma (patent term extensions). Odette has extensive industry knowledge including in relation to life sciences and pharma, food and beverages, consumer products and a range of other regulated industries. With her knowledge and experience, Odette advises and litigates across the full range of intellectual property law and associated areas including regulatory law (including privacy), administrative law, and competition and consumer law.
Kellie Stonier, Principal Lawyer, Stonier IP
Kellie Stonier is a highly regarded intellectual property lawyer and registered trade marks attorney with more than two decades of experience advising Australian and international clients on trade mark strategy, IP enforcement and commercialisation. She is the founder of Stonier IP and is recognised for combining technical excellence with practical commercial insight to help clients protect and maximise the value of their intellectual property assets. Kellie has been consistently recognised by Best Lawyers, Doyle’s Guide, Chambers & Partners and World Trademark Review for her expertise in intellectual property law and litigation. She also contributes actively to the profession through her role on the Intellectual Property Committee of the Law Council of Australia.
