ALTIUS Lawyers

ALTIUS is a large Belgian independent full-service law firm with an international focus, consisting of approximatively 70 lawyers. Its Life Sciences team has a proven track record in assisting clients in the pharmaceutical, healthcare, agricultural and food industries.

Established in Brussels, 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 through 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, pharmaceutical, healthcare, agricultural, para-pharmaceutical, medical device and food 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 Intellectual Property 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 Kirian Claeyé en Philippe de Jong, both IP partners. Philippe has expertise in the protection of plant biotechnological inventions. Completing the team are Tom Vantroyen, partner at the Corporate department, William Timmermans, head of the Regulatory department, and several senior and junior associates.

Through active memberships in various international associations and speaking at industry events, we built an effective international network on which to call on third-party expertise.


  • 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 2023 – IP – Band 1 - "answers to questions have always been provided in a timely manner, and the level of detail in the responses has been excellent." "out-of-the-box thinking and ability to find new ways."

  • Chambers Europe 2023 – Life Sciences – Band 3 - "Clients appreciate that the team is "very knowledgeable" and "explains things in a really clear way." "The team is smart, very diligent, pragmatic and solution-oriented."

  • Legal 500 EMEA 2023 - Healthcare & Life Sciences - Tier 2 - ‘Excellent quality of legal advice rendered in time at a reasonable cost. What else can a company wish for?'

  • Leaders League 2023 - Healthcare, Pharma & Biotech - Excellent

  • IPStars 2023 - Patent Disputes - Tier 1
    'ALTIUS is a full-service law firm with an excellent IP litigation practice, particularly in the life sciences sector.'

  • Legal 500 EMEA 2023 - IP - Tier 1- 'The Altius team offers bespoke, high quality advice in all aspects of IP' - 'Top flight IP team – involved in all the most important cases.'

  • IAM Patent 1000 2023 - Gold - “Christophe and Kirian are a fantastic team, always forcing their opponents to do their utmost without being unnecessarily aggressive.”

  • Who's Who Legal 2023
    Ch. Ronse - Global Elite Thought Leader - Life Sciences - Patent Litigation
    Ph. de Jong - Recommended - Life Sciences - Transactional
    T. Vantroyen - Recommended - Life Sciences - Transactional

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.

Our specialist Kirian Claeyé is happy to meet you.