Koen T'Syen specialises in commercial litigation and competition law.
Koen has successfully represented clients before civil and administrative courts as well as in alternative dispute resolution procedures such as mediation. He also advises clients on a wide range of commercial matters including contract law, distribution law and unfair market practices.
Koen has extensive experience in and knowledge of the life sciences and energy sectors, both at the Belgian and EU levels.
In the field of competition law, Koen focuses on abuses of dominance and cartels. Koen was appointed as the National Reporter for Belgium at the 2016 Congress of the International League of Competition Law (LIDC) in Geneva in view of his expertise in life sciences and competition law.
He regularly writes articles on Belgian business law and competition law issues.
Dutch, English, French
- Expert Guides – Rising Star in the field of Life Sciences
- Legal 500 for Healthcare and Life Sciences
- Legal 500 Competition Law (Belgium)
- College of Europe, Bruges, LL.M. in European Legal Studies, 2007
- University of Leuven, Master of Laws, 2006
- University of Namur, Bachelor of Law, 2003
Belgium chapter on antitrust in pharmaceutical markets in P. KOBEL ET AL. (eds.), Antitrust in Pharmaceutical Markets & Geographical Rules of Origin, LIDC Contributions on Antitrust Law, Intellectual Property and Unfair Competition, Springer, 2017.
Pharma.be’s Commented Codex Pharma – Public Health in Belgium (Knops Publishing - 2013).
Contributor toVan Bael & Bellis, Competition Law of the European Community (fifth edition, Kluwer, 2010), the standard work of reference in the field of EU competition law.
“Off-label use of medicinal products and product liability”, co-author with Peter L’Ecluse and Catherine Longeval, Life Sciences Cross-border Handbook (edition 2013), Practical Law Company.
“Patent settlement agreements: the state of play in the EU and the US”, co-author with Peter L’Ecluse, Catherine Longeval and Steven Corcoran, Life Sciences Cross-border Handbook (edition 2012), Practical Law Company.
“De bescherming van zakengeheimen in het Belgisch en Europees mededingingsrecht: Wat geheim is blijft geheim…of toch niet?”, co-author with Peter L’Ecluse, Cah. Jur. 2011, issue 1, pp. 20-30.
“Market Power in Bidding Markets: An Economic Overview”, World Competition 31(1):37-62, 2008 (this publication is a slightly amended version of Koen’s thesis at the College of Europe, Bruges, Belgium, for which Koen was awarded the Rafael Sanz Rodriguez Memorial Prize for best thesis in the College of Europe’s law department).
Member of the Association for the Study of Competition Law (Vereniging voor de Studie van het Mededingingsrecht/Association pour l'Etude du Droit de la Concurrence)
Member of TOPRA (The Organisation for Professionals in Regulatory Affairs)
Member of AIJA (International Association of Young Lawyers)
Assisting and representing a global provider of integrated supply chain solutions to, amongst others, clients in the defence industry, in litigation against an international organisation with a view to recovering a claim of more than $ 200 million.
Assisting and representing a joint venture of two global engineering and construction companies in litigation against a subcontractor in a dispute relating to a large construction project.
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