Judgment of the Court (Fourth Chamber) of 3 July 2019.#Viridis Pharmaceutical Ltd v European Union Intellectual Property Office.#Appeal – EU trade mark – Revocation proceedings – Word mark Boswelan – Genuine use – Absence – Use of the mark in the context of a clinical trial prior to the submission of an application for marketing authorisation for a medicinal product – Proper reason for non-use – Concept.#Case C-668/17 P.