Taylor Wessing strengthens its European patent litigation offering with the arrival of a leading team in Amsterdam. Bas Berghuis van Woortman, one of the most experienced patent litigators in the Netherlands, is set to join from Simmons & Simmons, together with his team of patent specialists. From 1 August 2025, Sebastien Versaevel, Diptanil Debbarma and Bouke Algie will join, with Daisy Termeulen following on 1 December. Bas’ start date will be announced later.

Together, the team brings a strong reputation in complex, cross-border patent litigation and advisory work. The move underscores Taylor Wessing’s strength as a litigation platform for technically driven, cross-border patent work. Their combined expertise significantly enhances our ability to advise on sophisticated disputes across Europe, with a focus on the Unified Patent Court (UPC).

The incoming Amsterdam team has a proven track record in telecoms, life sciences and high tech. Bas is widely recognised for his work in high-stakes disputes and has acted in several high-profile, UPC-relevant cases. Sebastien is a European Patent Attorney with a background in applied physics and a focus on litigation and licensing. Diptanil specialises in telecoms patents, freedom-to-operate analyses and prosecution. Bouke brings life sciences litigation experience underpinned by a scientific foundation. Daisy has broad experience in IP litigation across pharma, TMT and regulatory contexts.

This expansion is part of Taylor Wessing’s broader strategy to strengthen its integrated, pan-European litigation practice with deep technical capability. Following recent additions in cities like Paris, our litigation teams now operate seamlessly across jurisdictions, combining legal strategy with sector-specific knowledge in key UPC countries.

Recognised in amongst others JUVE Patent, IAM Patent 1000, Legal 500, Chambers and Managing IP, our Benelux Patents & Innovation practice operates at the heart of European patent strategy. Taylor Wessing is also one of the most active firms at the UPC, with litigators who have already led landmark cases under the new regime.

We’re building a European litigation team that reflects where the market is heading: complex, cross-border, and highly technical. This addition in Amsterdam reinforces our ability to operate at the intersection of law, science and strategy, with the UPC as a natural playing field.
Wim Maas | Head of Patents & Innovation the Netherlands

The UPC is changing the way litigation works in Europe. This team is ready for it – technically strong, connected across jurisdictions, and built to win complex cases.
Bas Berghuis van Woortman

Taylor Wessing continues to invest in high impact IP teams that operate at the sharp end of science, technology and litigation.

Taylor Wessing expands UPC power with experienced patent litigation team in Amsterdam 
Amsterdam – Taylor Wessing is strengthening its European patent litigation practice with the arrival of a leading team in Amsterdam. Bas Berghuis of Woortman, one of the most experienced patent litigators in the Netherlands, is joining the firm from Simmons & Simmons, along with his team of patent specialists. Sebastien Versaevel, Diptanil Debbarma, and Bouke Algie will start on August 1, 2025, followed by Daisy Termeulen on December 1. Bas's start date will be announced at a later date.

The team has a strong reputation in complex, cross-border patent litigation and strategic IP advice. This expansion confirms Taylor Wessing's position as a leader in technically driven patent litigation in Europe. The team's combined expertise strengthens its capacity to advise clients in complex proceedings, with a clear focus on the Unified Patent Court (UPC).

The team brings in-depth experience in telecom, life sciences, and high-tech, among other sectors. Bas is widely recognized for his work in high-stakes disputes and has litigated several high-profile UPC-related cases. Sebastien is a European Patent Attorney with a background in applied physics, focusing on litigation and licensing. Diptanil specializes in telecom patents and focuses on freedom-to-operate analyses and patent applications. Bouke combines a strong scientific background with extensive experience in life sciences litigation. Daisy has a broad practice in IP litigation, with a focus on the pharma, TMT, and regulatory sectors.

The expansion is part of Taylor Wessing's broader strategy to further develop its integrated, pan-European litigation practice with deep technical expertise. Following recent expansions in locations including Paris, our litigation teams operate seamlessly across jurisdictions, combining legal strategy and sector-specific knowledge in key UPC countries.

This expansion represents the next step in Taylor Wessing's strategy: an integrated, pan-European litigation practice with technical depth. Following recent expansions, including in Paris, our litigation teams operate seamlessly across borders and jurisdictions, with

a sharp sector focus in the key UPC countries. Our Benelux Patents & Innovation practice is recognized in JUVE Patent, IAM Patent 1000, Legal 500, Chambers, and Managing IP, among others. Taylor Wessing is also one of the most active UPC firms and has been involved in several groundbreaking cases since the introduction of the new system.

We're building a European litigation team aligned with the market's direction: complex, cross-border, and technically advanced. This reinforcement in Amsterdam increases our strength at the intersection of law, academia, and strategy, with the UPC as a natural playing field.
Wim Maas | Head of Patents & Innovation the Netherlands

The UPC is changing the playing field of patent litigation in Europe. Our team is ready – technically strong, cross-border connected, and built to win complex cases.
Bas Berghuis van Woortman

Taylor Wessing continues to invest in high-impact IP teams operating at the intersection of science, technology and litigation.

This news story was originally published on the firm’s website.