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
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
Chair:
Kellie Stonier, Principal Lawyer, Stonier IP; Best Lawyers 2026, Intellectual Property Law
Description
Attend and earn 1 CPE Hour in Trademarks
This program is applicable to practitioners from all States & Territories
Presenters
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.
Odette Gourley, Partner, Corrs Chambers Westgarth
Odette is one of Australia’s leading lawyers, well known as an expert in trade marks, patents, copyright and other intellectual property. Odette has been involved in high profile trade mark cases including Katy Perry, Winnebago and Gallo Barefoot, each a leading authority on aspects of Australian law. In the patents area, she won the Hassle case in the High Court on lack of inventive step and is waiting for a judgment from the High Court on patent term extensions which is of great significance in the pharmaceutical industry. Odette is an expert on regulatory regimes affecting intellectual property owning manufacturers across various sectors and has a broad practice acting in contested cases with the ACCC and advising on sensitive product and marketing claims for leading global product companies.
