JUVE Comment

This pure patent attorney firm in Düsseldorf has impressively consolidated its position amongst the market leaders. It performs at the highest level across all technical fields. Cohausz & Florack has once again raised the bar in the highly competitive telecommunications, pharmaceutical, and biotechnology sectors whilst attracting new clients. The team led by Christoph Walke has built an outstanding reputation representing clients in electronics, particularly mobile communications and related technologies. Beyond its work on high-profile ongoing proceedings for clients such as Nokia, the team is currently making a strong impression with numerous new lawsuits, frequently filed on behalf of NPEs. Investment in the team is paying off. Building on its roots in traditional mechanical engineering – where both prosecution and litigation are developing strongly – the firm has also established a growing presence in medical technology.

In the highly competitive market for patent attorneys serving life sciences originators, the team led by Natalie Kirchhofer and Arwed Burrichter has long been amongst the market leaders. Drawing on this strong position, they are once again attracting prominent originators with economically significant cases that were not previously part of their regular client base, such as Regeneron.

The firm’s team size has remained stable, yet it demonstrates considerable strength in developing young talent. Three home-grown patent attorneys – who are already making a positive impression in the market – were recently admitted to partnership. This figure, which is high even for a firm of this size, demonstrates the sustainable development of the team. Thanks to this forward-looking strategy, Cohausz & Florack avoids the personnel upheavals, integration challenges and capacity bottlenecks that have caused setbacks for competitors. Consequently, the firm is also one of the most successful pure patent attorney practices in terms of representation before the UPC.

Strengths

Litigation related to mobile communications for SEP holders and for originators concerning pharmaceuticals. Also litigation regarding software and electronics.

Recommended individuals

Arwed Burrichter, Natalie Kirchhofer, Peter Reckenthäler, Gottfried Schüll, Christoph Walke (“explains the technology to judges really well”, client), Philipe Walter, Matthias Waters (“top in translating technology”, client; all patent attorneys)

Team

30 patent attorneys

Clients

Litigation: Ueran against Xiaomi, Lenovo/motorola over 4G/5G; Celerity IP/Asus against Oppo, Samsung Electronics (settled 2026), Xiaomi (settled 2025); Celerity IP/Innovative Sonic against Oppo, Xiaomi (settled 2025) over mobile communications; Palmira against Nintendo, Garmin, ZTE, Xiaomi, Lenovo, HP, Cisco, BSH, D-Link over SEPs for wi-fi (settled 2025); Longhorn IP against Realme and Xiaomi over LTE; Nokia against Asus over video coding (settled 2026); Bayer against various generics companies over stroke medication Xarelto/rivaroxaban; Merck against Bayi over LCDs. EPO oppositions: Regeneron against BMS over antibody cancer therapy; Vitasweet against Celanese over sweetener acesulfame potassium/E950; ThyssenKrupp Steel against ArcelorMittal and Tata Steel over steel production; Zhejiang Aiko Solar Energy against Maxeon over solar cells. KPN against Oppo in nullity suit at Federal Court of Justice over network access; Merck against Hisense in nullity suit over LCD dyes. EPO oppositions: Adeia, Deutsche Post DHL, ILLIG Maschinenbau.