Litigation: Lawyers – Netherlands 2026

JUVE Comment

This market-leading Dutch IP boutique maintains a stronger presence in national patent cases than most competitors. This stems from its deep involvement in pharmaceutical and biotech disputes, which are more frequently litigated before national courts than at the UPC. Regular instructions come from generic and biosimilar drug manufacturers such as Sandoz and Accord. However, notable new instructions have recently arrived from Halozyme regarding cancer drug Keytruda and Novo Nordisk concerning semaglutide. Partner Daan de Lange also persuaded...

JUVE Comment

The Dutch patent practice of this international firm has undergone a fundamental transformation. In less than two years, the team led by partner Wim Maas has closed the gap to the market-leading practices in the Netherlands. This is thanks to its substantial presence in UPC cases for core clients such as Abbott, Ericsson and Pfizer, as well as high-profile instructions in national proceedings for Pfizer, Samsung Bioepis or Fresenius Kabi.

However, it was not only significant investment in new cases that gave the team a strong boost. F...

JUVE Comment

After a successful generational transition in recent years, the team led by younger partners Tjibbe Douma, Peter van Gemert and Carlos van Staveren has once again closed the gap on the market leaders Brinkhof and Hoyng ROKH Monegier considerably. This stems from substantial involvement in proceedings before the UPC local division The Hague, as well as in national litigation.

A notable new instruction saw the team representing Broadcom against Netflix at the District Court The Hague. The team also remains active for key clients KPN and...

JUVE Comment

The eminent Dutch patent practice at this international full-service firm remains a clear challenger to the market leaders. When it comes to representing originator drug manufacturers before the Dutch patent courts, Freshfields' Amsterdam team is even leading the market alongside Hoyng ROKH Monegier and Hogan Lovells.

The Amsterdam team works in the life sciences sector for long-standing client Novartis on several blockbuster drugs simultaneously. The team successfully represented Novartis on appeal against Synthon concerning heart fa...

JUVE Comment

With a particularly strong presence in life sciences cases, Hogan Lovells' Amsterdam patent team remains among the most active patent litigation practices in the Netherlands. Due to its strength in pharmaceutical and biotech matters, the team currently handles national cases more frequently than other Dutch teams, which have shifted significantly towards UPC work. Following its highly successful campaign for Bristol-Myers Squibb concerning Factor XA inhibitor Eliquis/apixaban, Hogan Lovells now represents Merck Sharp & Dohme in another major...

JUVE Comment

The patent litigation practice at international firm Pinsent Masons has historically maintained strength in life sciences, and this remains true of the Amsterdam team under partner Judith Krens. The team continues to serve its core clientele of generic and biosimilar drug manufacturers, including long-standing clients Accord and Teva. The latter's dispute with Bristol-Myers Squibb over apixaban recently settled. A notable instruction comes from Organon in a high-value, multi-jurisdictional patent dispute concerning blockbuster product Perjet...

JUVE Comment

The well-established patent litigation team at this national full-service firm has consolidated its position in the Dutch market over the past two years. Under the leadership of partner Jaap Bremer, the team has not only secured a victory for core client Viatris but has also attracted a significant new client in a cutting-edge technology. The firm now represents South Korean biotech company ToolGen in the high-profile international dispute against Vertex and Lonza concerning CRISPR-Cas9 gene editing technology before Dutch courts.

Via...

JUVE Comment

The patent litigation team at this Dutch full-service firm remains visible in the Dutch market. Although soft IP, M&A transactions and pre-litigation advice to the firm's long-standing clients occupy a significant portion of the team's work, it regularly appears in Dutch court proceedings. Recent prominent cases include work for Sonos and GSK. The representation of the pharmaceutical originator GSK — a focus of the practice — also encompassed UPC matters.

The patent team benefits from the considerable international reputation of lead ...

JUVE Comment

Since the arrival of renowned patent litigator Marleen van den Horst in 2023, this Dutch full-service firm has consolidated its position as a visible player in the Dutch patent litigation market. The team, which has grown to six litigators, continues to focus on the life sciences sector, representing a strong base of generic and biosimilar drug manufacturers. This is evident in its work for clients such as Krka against Novartis, and for STADA and INSUD over thrombosis drug Xarelto. Although most of these cases recently settled, the team cont...

JUVE Comment

The departure of partner Arvid van Oorschot has not diminished the visibility of this well-regarded Amsterdam-based patent litigation team. Instead, it has allowed the team around the two remaining partners, Otto Swens and Ricardo Dijkstra, to position itself more efficiently in the declining market for Dutch patent litigation. The increasing use of AI tools also helped the team to strengthen its offering. With this the firm remains highly visible in national pharma cases for key clients like Teva and Boehringer Ingelheim. Sandoz is another ...

JUVE Comment

At this Dutch mixed IP firm, patent attorneys make up the majority of fee earners. However, Arnold & Siedsma also stands out for its small but nimble team of lawyers who are highly active for predominantly Dutch SMEs at national courts across a broad range of technologies. Current examples include work for OneWay Plastics concerning patisserie piping bags, and Blister Partners regarding drug packaging technology. The firm consistently handles these cases with mixed teams of its own lawyers and patent attorneys. The legal team also supports W...

Other Rankings

• Patent Filing
• Litigation: Patent Attorneys

JUVE Comment

The Dutch CMS branch had previously maintained a low profile in patent litigation, being recognised primarily as a general IP practice. However, it has been significantly strengthened by the arrival of a four-strong team of lawyers from NautaDutilh. The team is led by Jeroen Boelens, who joined as a partner in late 2025. Featured in JUVE Patent's Ones to Watch in 2023, he brings broad patent litigation experience with a focus on pharmaceutical disputes. The team brought some work from its previous firm – including for clients such as NX Filt...