Ellen Crabbe

Partner at Brantsandpatents
Ranked in Belgium
IAM Research

The Patent 1000 focuses exclusively on patent practice and has firmly established itself as the definitive 'go-to' resource for those seeking world-class legal patent expertise.

Recommended - Individuals: prosecution

When entrepreneurs instruct Brantsandpatents they get a flexible, tailored service from highly experienced attorneys Johan Brants and Ellen Crabbe, who work together to deliver work of remarkable quality and consistency. Brants provides guidance that shows a true understanding of his clients’ needs and is enhanced by his ability to really level with inventors. “Crabbe is an intelligent and outstanding professional who has the capacity to communicate complex matters in a straightforward manner. Having her on your side is like a badge of quality.”

Ellen Crabbe's Profile

Ellen Crabbe is a European and Belgian patent attorney and partner at Brantsandpatents. She obtained a PhD in biotechnology from the University of Ghent and worked as a postdoctoral researcher in the field of developmental biology and cancer. She heads the life sciences department of Brantsandpatents.

Peers laud Ms Crabbe for her elaborate experience and knowledge of the patent system and life sciences scene in Belgium. She has been involved in various high-profile cases in the life sciences and pharma fields, including appeal procedures for plant variety rights at the Community Plant Variety Office in Angers, and supplementary protection certificates cases before the Belgian courts.

Ms Crabbe further has vast experience in conducting IP due diligence and has provided strategic advice in many M&A negotiations in the life sciences field in Belgium.

Firm Profile

Since 2011, Brantsandpatents has been the ‘go-to’ firm for companies that require solid and strategic advice on intellectual property. With a contemporary and dynamic approach, Brantsandpatents integrates a customised IP strategy that takes into account the needs and the DNA of companies and their market.

We ensure that your intellectual property is converted into a valuable tool within your company. Brantsandpatents knows better than anyone how to create value based on your IP rights. IP assets are carefully considered in order to maximise their return on investment. Intellectual property as a real business tool, that’s what it’s all about for us.

Our clients include start-ups, SMEs, multinationals, universities, research institutes and investment companies from all over the world.

Our patent team

The Brantsandpatents team is a multidisciplinary and multicultural team of passionate professionals with high-level scientific and industrial backgrounds, mainly in engineering, mechanics, life sciences, pharmacy and chemistry.

The patent team is headed by Johan Brants (a Belgian, Dutch and European patent attorney) and Ellen Crabbe (a Belgian and European patent attorney).


Through our experienced team of patent, trademark and design attorneys, Brantsandpatents offers a wide range of services relating to IP rights. Our patent team drafts and prosecutes patent applications and, thanks to our global network of associated patent agents, we are active worldwide. Other services of the patent team include:

  • patentability advice and freedom-to-operate analyses;
  • IP due diligence;
  • oppositions and appeal procedures before the EPO;
  • assistance with litigation;
  • advice on tax benefits related to innovation income in Belgium; and
  • overall strategic IP advice.

In addition to our patent team, the efficient and no-nonsense approach of our trademark and design attorneys helps you establish, implement and assert a trademark and design strategy that truly supports your project.

Industry sector strengths 

Brantsandpatents has a great amount of experience in multiple areas. Our main fields of expertise are in life sciences, chemistry, mechanical and electrical engineering and physics. We also have a strong knowledge of plant breeders rights.


Brantsandpatents has gained recognition among leading industry publications such as Managing Intellectual Property, World Trademark Review, Intellectual Asset Management and Leaders League.

For more info, visit www.Brantsandpatents.com

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