ALTIUS Lawyers

ALTIUS is one of the largest Belgian independent full-service law firms with an international focus, consisting of approximatively 65 lawyers. Established in Brussels and Louvain-la-Neuve, we advise Belgian and international companies on the legal aspects of their transactions and disputes.

Our teams are hands-on, thorough and approachable, helping clients navigate throug often complex legislation and regulatory environments and, eventually, providing them clear solutions to a wide range of legal issues. In addition to sharing our specialist legal knowledge, we focus on thinking creatively with our clients so we can offer them tailor-made solutions. Through careful listening and awareness, we aim to turn strategic questions into clear, straightforward answers.

Life Sciences Team

Our Life Sciences group has a proven track record in assisting clients in the life sciences, healthcare and agricultural industries in contentious and non-contentious matters, working on cases that continue to define the landscape for pharmaceutical patents in Belgium and beyond.

Led by IP and Litigation partner Christophe Ronse, the ALTIUS Life Sciences team represents several (multi)national pharmaceutical, medical and biotech companies on the legal issues encountered during each stage of their product development.  These stages include R&D, marketing authorisation, pricing and reimbursement, manufacturing, distribution and advertising. The team further includes Philippe de Jong, IP partner, who has expertise in the protection of plant biotechnological inventions, Tom Vantroyen, partner at the Corporate department, William Timmermans, head of the Regulatory department, as well as several senior and junior associates.


  • Agri-food law
  • Cell & tissue engineered products
  • Compliance
  • Corporate and M&A
  • Data protection
  • EU Regulatory Affairs
  • Intellectual Property
  • Medical devices
  • Medicinal products’ marketing
  • Parapharmaceuticals
  • Pricing and reimbursement
  • Protection of plant biotechnological inventions

Listings & recommendations

  • Chambers Europe 2021 – IP – Band 1
    "high level of understanding in IP" "well-founded advice is provided" "excellent service" "very good listeners"

  • Chambers Europe 2021 – Life Sciences – Band 3
    The team "works in a thorough manner and within tight deadlines."
    Ch. Ronse advises clients on market access, clinical trials and medical equipment matters, including tendering.

  • Legal 500 EMEA 2021 - IP - Tier 1
    ‘A great range of lawyers who all have significant expertise assisting patentees. They are almost unique in Belgium for their proactive approach to IP protection and defence.'

  • Legal 500 EMEA 2021 - Healthcare and Life Sciences - Tier 2
    ALTIUS has an impressive client base in the life sciences industry, including Novartis and Hoffmann-La Roche.

  • Leaders League 2021 - Healthcare, Pharma & Biotech - Excellent

  • IPStars 2021 - Patent Contentious - Tier 1
    'ALTIUS is a full-service law firm with an excellent IP litigation practice, particularly in the life sciences sector.'

  • IAM Patent 1000 2021 - Gold
    'The “intelligent and astute” (Christophe) Ronse is a first port of call for pharmaceutical originators faced with must-win suits.'

  • Legal 500 EMEA 2021 - IP - Tier1
    “Christophe Ronse, Philippe De Jong are both very hard-working and smart lawyers. Quick in understanding the client’s needs. They can bring arguments convincingly in court.”

  • IAM Patent 1000 2021 - Gold
    IAM Patent 1000 newcomer (Kirian) Claeyé is “a highly respected lawyer with a commanding, tough approach, but a gentlemanly demeanour”


Altius’ cases in Biotech & Life Sciences

By Christophe Ronse

Havenlaan 86C 1000 Brussels, Belgium

tel: +32 2 426 14 14
fax: +32 2 426 20 30
Biolegis contact:
Christophe Ronse

Our specialist Christophe Ronse is happy to meet you.

Our specialist Tom Vantroyen is happy to meet you.

Our specialist Philippe de Jong is happy to meet you.