‘Innovation only creates sustainable value when it is properly protected and defended.’
Leen Beller
- Life Sciences
- European and Dutch Patent Attorney
- Associate
After studying Biomedical Sciences at KU Leuven, Leen obtained her PhD from the Rega Institute in 2015. For five years, she conducted research into the development of the gut microbiome in healthy children in their first year of life. With a strong scientific background in microbiology, virology, genomics, bioinformatics, and biostatistics, she made the switch to V.O., where she works as a Dutch and European patent attorney in the Chemistry & Life Sciences department.
News
UPC Court of Appeal on “same parties” under Article 33(4) UPCA, late claim amendments, and an inventive-step framework: Meril v Edwards (EP 3 646 825)
In its decision of 25 November 2025 concerning EP 3 646 825, the Unified Patent Court (UPC) Court of Appeal addressed procedural coordination between infringement and revocation tracks, the admissibility of sequential amendment requests, and core principles for claim construction and inventive step.Continue reading
Award from Managing IP
On 1 May 1, the British magazine Managing IP once again presented its annual awards in London to IP firms worldwide for their achievements in the field of intellectual property.Continue reading
Herman Witmans and Leo Jessen retire from V.O.
Today, partners Herman Witmans and Leo Jessen retire. This marks the end of impressive careers in which they dedicated themselves with great commitment for 36 and 34 years respectively to clients, colleagues, and the development of the patent attorney profession.Continue reading