Mark Wilden appearing in Competition Appeal Tribunal in case involving Microsoft software resale

11th September 2025

Mark Wilden Jan 2022 2 scaled

3PB’s specialist intellectual property barrister Mark WildenMark WildenCall: 2018 is currently appearing in the Competition Appeal Tribunal in a case involving the legality of selling pre-owned Office and Windows software.

The two-day hearing, running from 9-10 September 2025, looks to resolve the key question of whether certain components of Windows and Office fall outside the EU’s copyright exhaustion rules for software, which allows the resale of perpetual software licenses. This important decision could significantly effect the legal foundation for the software resale markets in the UK and across Europe.

This case has been widely reported in the media, including Law360, MSN News and The Register.

To contact or instruct Mark, please email Chambers Director David Fielder, or telephone 020 7583 8055.