Glencairn IP Holdings Ltd & Anor v Product Specialities Inc & Ors [2020] 3 WLR 810, [2020] FSR 30, [2021] Ch 201

Stephanie Wickenden acted as sole counsel for the successful appellants in the Court of Appeal that created new precedent in respect of solicitors’ conflicts. The Appellants/Defendants’ solicitors previously acted for another defendant in a case brought by the same claimant where the facts had some overlap, and which was resolved by a confidential mediation. The Court found that the principles to be applied were not the same as those in former clients, but that there was a potential for a conflict of duties owing to the confidential information received through the previous mediation. On the facts, the solicitors had not breached any duty as they had implemented an appropriate information barrier.

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Stephanie Wickenden specialises in intellectual property, art and media law.

She has experience in commercial chancery cases in the creative and technology sectors, including contractual and tortious IT disputes, contentious trusts and estates matters involving creative assets, and shareholder and directors’ disputes involving IP breaches. A significant proportion of her practice has an international element, including cases involving disputed jurisdiction, foreign law, and service and enforcement out of the jurisdiction.

With a background in art and theatre, combined with expertise in IP, commercial and private international law, Stephanie is uniquely placed to advise on contentious and non-contentious matters relating to art and cultural property. Having spent three years at a top international law firm, she also advises on IP transactions and licensing.

Stephanie enjoys working as part of a team and is confident acting as sole counsel. She is regularly instructed in significant Intellectual Property cases before the UK courts, often unled and against KCs, including Thatchers v Aldi [2025] EWCA Civ 5 and EasyGroup v Nuclei and others [2023] EWCA Civ 1247. She has appeared before the CJEU (General Court), Court of Appeal, High Court and IPEC, and in registry proceedings before the UK IPO and EUIPO.