Steven Cattoor specializes in patent and trade secret litigation. His practice encompasses diverse sectors and technologies, but mainly focuses on the life sciences industry where he represents a number of innovative companies. He is a regular guest lecturer in patent law at the Vrije Universiteit Brussel and in the department of pharmaceutical sciences at Ghent University.

    • Pfizer v. Genentech. On a patent relating to trastuzumab formulations, in the context of the launch of a Herceptin®.
    • Umicore v. Ege Kimya. On cobalt polymer additives for use as drying agent in paints.
    • FrieslandCampina v. Incopack. On an improved spout for whipped cream aerosol cans.
    • Clayton v. Altachem. On improved, non-sticking valves for use on aerosol cans with 1 component PU foam.
    • Sanofi v. Sandoz. On the irbesartan and hydrochlorothiazide combination SPC.
    • Nestlé v. Unilever. On bouillon formulations.
    • Aerocrine v. Medisoft. On medical devices for use in the diagnosis and treatment of asthma.
    • Lundbeck v. Tiefenbacher et al. On the escitalopram SPC.
    • GSK Bio v. Novartis. On Novartis’ patent portfolio in the pediatric meningococcal vaccine field.
    • Organon (MSD) v. Docpharma (Mylan) & Mithra. On a set of patents relating to tibolon.
    • European Patent Lawyers Association (EPLAW)
    • International Association for the Protection of Intellectual Property (AIPPI)
    • “Icos Corporation versus generieken (Teva, Sandoz, Mylan)”R.D.I. Co-authored with Liesbeth Weynants (2019).
    • “De ABC Verordening. Artikelsgewijze commentaar”, in Wet & Duiding – Reeks Economisch Recht. Boek 10: Intellectuele Rechten, F. Brison, M.C. Janssens and H. Vanhees (ed.), Brussels, Larcier (2012).
    • “Competition Law, Pharmaceuticals and the European Commission.” RAJ Pharma (2009). Co-authored with Maarten Meulenbelt and Benoît Strowel.
    • De ‘Belgian torpedo’ op sterven na dood.” R.D.I. (2001).
    • “Aansprakelijkheid van ISP’s.” Computerrecht (2001).
    • “Article 3a-b SPC Regulation – State of Play”, C5 Pharma Patent Extensions, Munich, June 2016
    • “Unitary Patent & Unified Patent Court – Transitioning from dream into reality”, VBO, 18 December 2014
    • “UPC: focus on pharmaceutical & chemical industry”, Premier Cercle IP Summit, Paris, December 2013
    • “SPC Fundamentals”, C5 Biotech Patenting Forum, Munich, March 2013
    • “Patents and start-ups. A lawyer’s view”, Entrepreneurship in Photonics, VUB/ICAB, January 2011
    • “Introduction to IP & Patent law in the pharmaceutical sector”, guest lecturer at the department of pharmaceutical sciences of Ghent University
    • “Steven Cattoor is very easy in court, with a likeable presentation of complex legal matters.” Legal 500 2021 
    • “Super technical and capable of really delivering detailed advice.” Chambers & Partners 2021
    • “Capable and responsive litigator” Chambers Europe 2020
    • “Remarkable lawyer who thoroughly analyses each and every case. He is eager to understand the technology behind the product and efficiently cooperates with patent attorneys to ensure that all legal, technical and patent interpretations align.” IAM Patent 1000 2020
    • “Very good in patent litigation and bringing his point across.”
      Chambers Europe 2019
    • Steven Cattoor is ‘a cool, level-headed advocate’. Legal 500 2018
    • “Hands-on approach and straightforward communications.”
      Chambers 2017
    • “Brilliant legal analysis, attention to detail, superb technical skills and quality argumentation.” Managing Intellectual Property IP Stars 2017
    • “An excellent communicator and litigator.” IP Stars 2016
    • “He is helpful, engaging, proactive and knowledgeable about the practicalities of Belgian patent law and court practice. He is also very customer friendly and always looks out for your interests.”
      IAM Patent 1000 2016
    • “Life sciences mavens Benoît Strowel and Steven Cattoor combine patent, antitrust and regulatory expertise to deliver prescient advice to pharmaceutical patentees. They are perennially at the cutting edge”, and “Protecting pharmaceutical products at the end of the patent lifecycle has become a particular specialty of theirs.” IAM Patent 1000 2015
    • “Steven Cattoor gives “clear, pragmatic and efficient service” to clients.” Managing Intellectual Property IP Stars 2015
    • “The “highly knowledgeable” Steven Cattoor focuses on patent litigation and receives widespread praise for his expertise in the life sciences sector, where he represents numerous research-based manufacturers. Who’s Who Legal 100, 2015
    • “Pleasant and hardworking” Steven Cattoor is frequently consulted on SPC issues and is a recognised authority on pharmaceutical patents.” IAM Patent 1000 2014



Avenue des Nerviens 9-31
Nerviërslaan, 4th Floor
B-1040 Brussels


Avenue des Nerviens 9-31
Nerviërslaan, 4th Floor
B-1040 Brussels



Neerlandés, Inglés, Francés


University of London, Queen Mary and Westfield College (LLM, 1998)

Ghent University (Law, 1997)