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Key contacts
Head of Business Development: Joachim Loew
Quick facts
Partners

26

Other qualified practitioners

35

Total number of practitioners

35

Practitioners (worldwide)

35

Languages

German, English, French, Spanish

Network memberships

RAK Düsseldorf, Patentanwaltskammer, epi, UPC representatives, EUIPO, AIPPI, Aktion Plagiarius e.V., ASA (Association Suisse de l’Arbitrage), DCW (Deutsch-Chinesische Wirtschaftsvereinigung e.V.), DIS (Deutsche Institution für Schiedsgerichtsbarkeit), DJW (Deutsch-Japanischer Wirtschaftskreis), ECTA, epi, FICPI, GRUR, INTA, ICC, LES, UNCITRAL, WTO, VPP, women in IP

Key practice areas
Intellectual property
Trade mark
Patent
Patent prosecution
Trade mark - patent & trade mark attorney firms
Patent disputes - patent & trade mark attorney firms
Firm overview

IP practice specialisms

We are a Tier-1, disputes-led patent practice with full life-cycle capability:

• High-stakes infringement and revocation before the German courts and the Unified Patent Court (UPC);
• Complex EPO oppositions/appeals; and strategic prosecution with litigation in mind. Our bench covers SEPs/FRAND (video codecs, cellular, Wi-Fi), blockbuster pharma (incl. SPCs), medical devices, automotive & emobility, chemistry/materials, mechanical/process engineering and ICT/software/cryptography.
• We integrate litigation strategy and drafting from invention disclosure through to trial, resulting in robust, enforceable rights.

Industry / sector strengths

Current mandates highlight depth in life sciences/pharma, automotive & mobility, telecoms/consumer electronics, energy & battery, steel/advanced materials, and hygiene/med-tech.

Key IP clients and new client wins

Representative clients over the review period include Bayer AG, Essity AB, LG Energy Solution, Magna PT B.V. & Co. KG, ThyssenKrupp Steel Europe AG, NJOY Netherlands B.V., Palmira Wireless AG, Longhorn IP, Merck KGaA, Schoeller Technocell GmbH & Co. KG.

Team experience and size

The practice comprises 23 partners and 11 non-partners dedicated ≥ 90% to patents. The group mixes career-long litigators and prosecution strategists with deep technical specialists (chemistry, biochemistry, physics, EE, ME). All patent attorneys are UPC Representatives and frequent lead trial counsel before the EPO Boards of Appeal, UPC and German courts.

International presence and alliances

We operate from Düsseldorf (HQ) and Munich, coordinating cross-border disputes and UPC work with a trusted circle of trial firms and global counsel networks built over decades of pan-EU/US campaigns.

Recent developments (incl. offices, innovation, people)

• UPC momentum: involvement in >60 UPC matters to date, including central revocations and cross-border enforcement in life sciences and telecoms.
• High-impact litigations: Bayer (XARELTO PIs and EPO defence), Millennium (VELCADE), Magna v Valeo (multiforum hybrid transmissions), LG Energy Solution (global battery-pack monetisation), Palmira Wi-Fi campaigns, Nokia multi-defendant programmes.
• Client-facing innovation: dedicated Business Development department; an internal AI hub/task force (secureon-prem environment) for docketing automation, prior-art intelligence and reporting; revamped knowledge-sharingfor faster, harmonised output.

Primary Contacts

Andreas Thielmann, Partner and Patent Attorney
Dr. Ralph Minderop, Partner and Patent Attorney
Johannes Simons, Partner and Patent Attorney
Gottfried Schüll, Partner and Patent Attorney
Dr. Thomas Rox, Partner and Patent Attorney
Erik Schäfer, Partner and Attorney-at-Law
Ulrike Alice Ulrich, Partner and Attorney-at-Law
Dr. (USA) Arwed Burrichter, Partner and Patent Attorney
Hans-Joachim Meyer, Partner and Patent Attorney
Mathias Karlhuber, Partner and Patent Attorney
Philipe Walter, LL.M., Partner and Patent Attorney
Arnd Ziebell, Partner and Patent Attorney
Dr. Christoph Walke, Partner and Patent Attorney
Rebekka Schiffer, LL.M., Partner and Attorney-at-Law
Dr. Jochen Kapfenberger, Partner and Patent Attorney
Dr. Fabian Vogelbruch, Partner and Patent Attorney
Dr. Henning Sternemann, Partner and Patent Attorney
Hendrik Bücker, Partner and Patent Attorney
Jan Ackermann, Partner and Patent Attorney
Mathias Waters, Patent Attorney, European Patent Attorney
Dr. Natalie Kirchhofer, Partner and Patent Attorney
Michel Kaminsky, Partner and Patent Attorney

Practice Areas & Sector Specialisations

Key practice areas: 

Copyright, Copyright & related rights, Designs, Intellectual property, Intellectual property (contentious), Intellectual property (prosecution), IP transactions, Life sciences, IP Patent, Patent (contentious), Patent (prosecution), Trade mark, Trade mark (contentious),  Trade mark (prosecution), Other

Sector expertise: 

Aerospace, Artificial intelligence, Automotive, Aviation, Biotechnology, Chemical, Computer technology & services, Construction and materials, E-commerce, Electrical, Electronics, Energy,  Fashion & luxury goods, Healthcare,  ICT & software,  Industrials, Life sciences,  Manufacturing,  Mechanical, Medical device, Nanotechnology, Oil and gas, Optics & photonics, Pharmaceutical,  Renewable energy, Robotics, Technology hardware, Telecommunication, Universities & research,  Utilities

Address:
Bleichstr. 14 Duesseldorf, 40211
Germany
40211
Email:Contact Us Web Address:http://www.cohausz-florack.de
2026 Edition
Patent disputes - patent & trade mark attorney firms
Tier 1
23 firms ranked
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Tier 1

Bardehle Pagenberg
10 practice areas
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Cohausz & Florack
6 practice areas
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Hoffmann Eitle
7 practice areas
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Vossius & Partner
8 practice areas
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df-mp
5 practice areas
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Tier 2

Boehmert & Boehmert
17 practice areas
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Eisenführ Speiser
7 practice areas
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Grünecker
6 practice areas
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Maikowski & Ninnemann
6 practice areas
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Maiwald
7 practice areas
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Meissner Bolte
7 practice areas
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Samson & Partner
9 practice areas
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Tier 3

Braun-Dullaeus Pannen Emmerling
5 practice areas
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Peterreins Schley
5 practice areas
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Ter Meer Steinmeister & Partner
4 practice areas
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Thum & Partner
6 practice areas
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Wuesthoff & Wuesthoff
6 practice areas
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Other Notable Firms

EIP
4 practice areas
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Isenbruck Bösl Hörschler
5 practice areas
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Michalski Hüttermann & Partner
6 practice areas
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WBH Wachenhausen
3 practice areas
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Wallinger Ricker Schlotter Tostmann (WRST)
4 practice areas
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Weickmann
6 practice areas
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Patent prosecution
Tier 2
36 firms ranked
View full list

Tier 1

Boehmert & Boehmert
17 practice areas
View full profile
Grünecker
6 practice areas
View full profile
Hoffmann Eitle
7 practice areas
View full profile
Maiwald
7 practice areas
View full profile
Vossius & Partner
8 practice areas
View full profile

Tier 2

Bardehle Pagenberg
10 practice areas
View full profile
Cohausz & Florack
6 practice areas
View full profile
Eisenführ Speiser
7 practice areas
View full profile
Meissner Bolte
7 practice areas
View full profile
Weickmann
6 practice areas
View profile
Wuesthoff & Wuesthoff
6 practice areas
View profile

Tier 3

Dompatent von Kreisler
3 practice areas
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Epping Hermann Fischer
4 practice areas
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Isenbruck Bösl Hörschler
5 practice areas
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MERH-IP Matias Erny Reichl Hoffmann
4 practice areas
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Maikowski & Ninnemann
6 practice areas
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Maucher Jenkins
6 practice areas
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Michalski Hüttermann & Partner
6 practice areas
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Müller Schupfner & Partner
5 practice areas
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Samson & Partner
9 practice areas
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Uexküll & Stolberg
6 practice areas
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Viering Jentschura & Partner
3 practice areas
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Winter Brandl
2 practice areas
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Other Notable Firms

Dreiss
3 practice areas
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Gulde & Partner
5 practice areas
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HGF
4 practice areas
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Kraus & Lederer
3 practice areas
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Manitz Finsterwald
5 practice areas
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Murgitroyd
5 practice areas
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Prüfer & Partner
6 practice areas
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SKM-IP
4 practice areas
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Ter Meer Steinmeister & Partner
4 practice areas
View profile
WITTE WELLER
4 practice areas
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WSL
5 practice areas
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Wallinger Ricker Schlotter Tostmann (WRST)
4 practice areas
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df-mp
5 practice areas
View full profile
Testimonials

2026

"Great people with excellent technical and legal skills, one of the top patent attorney firms in Germany with great UPC experience."

"The team works closely with the client to find the best solution for them, including from a financial perspective."

"Excellent support during the patent validity analysis...world class experts with honest and open minded attitude. Always easy to discuss, contact, clear communication and keeping timeschedules. Great professionals."

"Cohausz & Florack have a broad area of expertise but are particularly knowledgeable in mobile telecommunication and video coding matters. They are technically highly skilled and able to transport technically complex issues in a simple and understandable manner. This is very valuable in the litigation context."

"Cohausz & Florack has an outstanding team of highly skilled patent attorneys. Among many things, they offer broad experience in many technological areas, have an extraordinary eye for detail and are simply fun to work with."

"They always think one step ahead. With their broad experience and extraordinary eye for detail they always deliver high quality work."

"Excellent technical understanding of extremely complex inventions, persuasive and comprehensive legal writing, perfect preparedness, and winning performances in court. Overall, this firm exemplifies professionalism in SEP litigation."

Christoph Walke

"One of the best in his field, he can make the difference to win a case."

Björn Brouwers

"Björn has excellent patent legal know-how, especially about EP patent law. Also strong technical knowledge about telecommunications like LTE and 5G. Timely replies and honest open communication style. Really pleased and priviledged to work with him."

Christoph Walke

"Christoph Walke is a master in telecommunications and video coding. He is very creative and is super quick to get up to speed on new matters. Christoph is a true team player and a joy to work with. He is also great in oral hearings."

Martin Rütten

"Martin has deep knowledge of the telecommunications sector and an excellent eye for relevant details. He always goes the extra mile."

Practitioners say a 32% rise in court fees is somewhat expected to maintain the UPC’s strong start, but some warn that SME clients could be squeezed out
The court ordering a complainant to rank its arguments in order of potential success and a win for Edwards Lifesciences were among the top developments in recent weeks
Cohausz & Florack, together with Krieger Mes & Graf von der Groeben, has taken action against Amazon on behalf of three VIA LA licensors
For our latest update, we review recent appeals and first-instance decisions and look at hearings scheduled in the next two weeks
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