Patent litigation: patent lawyers in Germany

Covers litigious patent matters, considering both law firm and mixed law firm practice. Disputed patent matters handled by patent attorneys, with a focus on nullity proceedings, and the business with patent applications and official proceedings are covered in a separate ranking. 

Bardehle Pagenberg

IP boutique Bardehle Pagenberg fields a mixed team of patent lawyers and attorneys-at-law and is well versed in parallel nullity and infringement proceedings. The extensive opposition practice, especially before the EPO, complements the team’s forensic expertise. Core industries include the automotive, pharmaceuticals and telecoms sectors, with additional experience in the electronics, software and the medical technology sectors. Johannes Lang, Christof Karl, Joachim Mader and Tobias Kaufmann head the team. Patrick Heckeler (inventions related to IT as well as mechanics, electrical engineering and telecoms) made partner in January 2021.


Bardehle Pagenberg is our law firm of choice for complex patent litigation in Germany. They navigate us confidently through infringement and nullity proceedings conducted in Germany and combine their experience before the judiciary with an in-depth understanding of our business and our technologies.’

I really appreciate that Bardehle has both lawyers and patent attorneys on the team.’

Key clients


AusBio Laboratories


Cisco Systems Inc.

Daiichi Sankyo





Ethicon Endo Surgery Inc.

Intellectual Ventures





Robert Bosch

Rogers Corporation

Schöck Bauteile GmbH



10x Genomics Inc.

Work highlights

  • Representing Nintendo in proceedings before the District Court of Mannheim and parallel nullity proceedings against Avago for infringement of patents relating to a graphics chip in the Nintendo Switch.

Cohausz & Florack

Cohausz & Florack is particularly well versed in opposition and infringement proceedings for standard-essential patents and the sectors chemicals and life sciences. The Düsseldorf-based IP boutique also has an active opposition practice for both German and international clients. The group is particularly experienced in supporting clients from the US, China and Korea. Key contacts include life sciences specialist Arwed Burrichter, Natalie Kirchhofer as a biochemistry, pharmaceuticals and life sciences expert, Christoph Walke, who is a specialist in electrical engineering, and Gottfried Schüll, who specialises in standardised technologies. Björn Brouwers (including communications engineering and energy technology) made partner in January 2021. Ralph Minderop retired in 2020.


COHAUSZ & FLORACK is clearly one of the best patent attorney teams for patent litigation. The telecommunications and IT team in particular impresses with a very high level of technical and legal expertise. The team is focused on finding solutions that resolve any issues, but they are still very good team players who work well with our in-house teams and other attorneys.’

Christoph Walke drives the processing of the cases through his team very smoothly. We trust him because of his impressive track record in high-tech patent litigation.’

Key clients

Bayer AG

bio-tec Biologische Naturverpackungen GmbH & Co. KG


Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V.

Henkel AG & Co. KGaA

df-mp Dörries Frank-Molnia & Pohlman Patentanwälte Rechtsanwälte PartG mbB

df-mp Dörries Frank-Molnia & Pohlman Patentanwälte Rechtsanwälte PartG mbb fields one of the most renowned patent lawyer teams for disputes, especially nullity and infringement proceedings. Oppostion and complaints procedures complete the contentious service offering. The group is particularly visible in proceedings for pharmaceuticals and mobile communications clients, with additional technology-related expertise far beyond these two areas. The team is led by David Molnia, Hans Ulrich Dörries, Dominik Ho, Sandra Pohlman, Elisabeth Greiner and Philipp Nordmeyer.


The cooperation with the team at df-mp is extremely trusting and proactive. Working with Ms. Elisabeth Greiner is extremely good. She is able to listen very well to understand what is really going on and is then able to find the right solution. This enables her to provide an excellent service without excessive effort (in terms of time and money). The diligence and professionalism in execution is beyond reproach.’

The team is very knowledgeable in SEP telecom patents and very efficient in the job management.’

‘Dominik Ho is both technically very good and effective in the courtroom. The court clearly respects and appreciates his presentation of the technical and patent issues.’

It is a great pleasure to work with Elisabeth Greiner. Highly experienced in patent litigation, knows all the tricks and tricks. Technically highly qualified. Perfect work results, very thorough, very careful and very fast.’

Key clients



Webasto SE



France Brevet

Conversant Wireles Licensing

Unwired Planet/ Panoptis




Lonza Solutions AG




Hexal AG

One Button – Arendi





IP Bridge


Torqeedo GmbH

Krones AG

Fresenius Medical Care AG & Co

Toll Collect GmbH

Trumpf GmbH + Co. KG

Hasso Plattner Institut

Work highlights

  • Representing Interdigital in enforcing its mobile phone patent portfolio before the District Court of Munich and in defending the patent portfolio before the Federal Patent Court.
  • Representing Ceva Animal Health in an opposition against Bayer’s EP2164496 concerning Forceris® and Baycox Iron®, successfully ending the long-standing legal dispute.
  • Representing Sonos in an injunction against Google.

König . Szynka . Tilmann . von Renesse

König . Szynka . Tilmann . von Renesse enjoys an excellent reputation for its successfully won lawsuits in the pharmaceuticals and biotechnology industries. Clients’ representation in nullity proceedings and support in infringement proceedings, with additional experience in the coordination of international disputes are all part of the firm’s service spectrum. Gregor König is frequently recommended and advises industrial clients as well as medium-sized companies.

Other key lawyers:

Gregor König

Maikowski & Ninnemann

Maikowski & Ninnemann is among the most active litigation practices in German patent law. Clients benefit from the firm’s strategic decision to put equal emphasis on litigation as well as application and authorities proceedings, thus the prosecution practice and litigation team create mutually added value. Numerous high-tech companies instruct the group, including from the technology and electronics sectors, while the overall industry expertise is broad. Patents on artificial intelligence constitute a growth area. Key figures in the team are Gunnar Baumgärtel (including mechanical engineering, soft and chip technology), Felix Gross (including process engineering, plastics technology, mechanical engineering, software), Ralf Emig (including mechanical engineering, automotive engineering, medical technology), Andreas Tanner (including electrical engineering , IT, medical technology), Christoph Schröder (including electrical engineering, medical technology, mechanical engineering) and Fabian Sokolowski (including medical technology, chemicals, biotechnology). The firm’s headquarters are in Berlin with other offices in Munich, Leipzig and Frankfurt. Frederick Kramer (mechanical engineering, automotive engineering, physics, electrical engineering) in Frankfurt made partner in January 2021.


‘Excellent technical understanding, creative approach and the ability to present complex technical contexts in a clear and precise manner. The consistently high quality of the patent attorneys across the board is remarkable. Very collegial and result-oriented in cooperation. Particularly strong in telecommunications and technology.’

‘Gunnar Baumgärtel is an excellent courtroom attorney who is a pleasure to have at your side in infringement proceedings. Very experienced and technically brilliant. Andreas Tanner is able to convey complex issues very clearly.’

‘Outstanding technical expertise paired with the ability to present it clearly and comprehensibly even for non-technically trained people, which means that it also hits the recipient horizon of the court particularly effectively in infringement proceedings.’

‘Excellent technical expertise – especially in all facets of electrical engineering; collegial and highly professional cooperation; fight extremely committed and with a high level of commitment for the interests of their clients.’

‘Gunnar Baumgärtel and Andreas Tanner are excellent litigators who know how to present complex technical issues to the court in an understandable way.’

‘Very strong patent attorneys, especially in the area of telecommunications and electrical engineering. Convincing content and linguistically successful briefs.’

‘Gunnar Baumgärtel is one of the best and most experienced patent attorneys in Germany. Extremely precise and very strong in pleading. Andreas Tanner is a very strong representative. Ralf Emig convinces with technically demanding cases.’

‘Gunnar Baumgärtel: Fantastic comprehension, acts confidently even under pressure. Felix Gross: Outstanding team player, good strategist. Ralf Emig turns every stone, extremely detailed.’

‘Excellent team of patent attorneys.’

‘Felix Gross: Excellent practitioner. Gunnar Baumgärtel: Experienced litigator.’

Key clients

ARRI (Arnold Richter)





Brose Fahrzeugteile



Fenwal Inc.


Fraunhofer Gesellschaft

Fresenius Kabi

FU Berlin


GE Healthcare




Infineon Technologies

Joyson Safety Systems


LG Electronics (LGE)

LR Health & Beauty

Magna International

MD Elektronik

MSA Auer


Phoenix Contact

ProBiodrug AG

Rolls Royce

Solar Edge



TU Berlin

TU Dresden





Since its formation in 2019, BRAUN-DULLAEUS PANNEN EMMERLING has established itself as one of the most active IP boutiques for nullity proceedings in Germany. The offices in Munich and Düsseldorf are also active in infringement and complaints proceedings. In addition to the litigation practice, the firm also offers advice on patent applications and representation in the corresponding authorities proceedings. Karl-Ulrich Braun-Dullaeus (Düsseldorf) and Friedrich Emmerling (Munich) are the practice heads. Jörg Kohlschmidt (Munich; data protocols and bus systems, high-frequency technology, mobile communication, circuit technology) made salary partner in May 2021. Ju Min Kim joined Vossius & Partner in March 2021. Matthias Erdmann left the firm in April 2021.

Other key lawyers:

Jörg Kohlschmidt


‘Excellent knowledge from many years of extensive experience in the telecommunications sector. Good strategy. Open communication about risks and opportunities.’

‘Excellent coordination of complex international supply chains in defense.’

‘One of the most experienced patent attorney units for standard essential patent litigation.’

‘Friedrich Emmerling: Great technical understanding and very process-experienced.’

‘Jörg Kohlschmidt: Excellent mandate organization.’

Friedrich Emmerling: One of the most experienced and best patent attorneys in Germany.’

Key clients

Huawei Technologies Co., Ltd.

Deutsche Telekom

Continental Automotive GmbH

Adidas AG

Leonardo MW Ltd

Philip Morris

Thales DIS France

Work highlights

  • Representing Huawei Technologies Co., Ltd. and Deutsche Telekom in patent disputes from 15 patents before the LG Mannheim, OLG Karlsruhe, LG and OLG Munich, LG and OLG Düsseldorf, BPatG, Federal Court of Justice and EPA regarding network infrastructure, smartphones and DSL modems.
  • Representation of Continental Automotive GmbH and Huawei Technologies Deutschland GmbH on patents in connected vehicles, parallel opposition proceedings and actions for nullity before the EPO and the BPatG pending.
  • Representing Philip Morris in a BAT-led global e-cigarette series of lawsuits in the US, UK and Germany.

Hoffmann Eitle

At Hoffmann Eitle, clients benefit from the combined expertise of patent lawyers and attorneys-at-law, who regularly cooperate in nullity, opposition and infringement proceedings. The firm enjoys a particularly good reputation for its chemicals and biotechnology sector expertise, but also has experienced mechanical engineering, electrical engineering and IT experts. In addition to the three German locations in Munich, Düsseldorf and Hamburg, the firm has offices in Barcelona, Madrid, Amsterdam and Milan. International strength is evident in the large number of Japanese, Korean, Chinese and US clients among the client portfolio. The team leaders, all based in Munich, are Matthias Kindler, Peter Klusmann and Klemens Stratmann for the chemicals sector, Leo Polz and Joseph Taormino for the biotechnology segment, Christopher Furlong for mechanics and Rainer Zangs for electrical engineering matters.

Maiwald GmbH

IP boutique Maiwald Intellectual Property has both patent lawyers and attorneys-at-law among its team and is a good choice for opposition and nullity proceedings as well as for patent infringement proceedings. The team is best known for its strong life sciences practice and sizeable team, thus offering a broad range of technical expertise. The key contacts include Derk Vos (chemicals and pharmacy), Dirk Bühler (pharmaceuticals, biotechnology, personalised therapy, diagnostics), Alexander Schmitz (electrical and information technology, mechanics, mechanical engineering), Eva Dörner (chemicals, pharmacy, crop protection) and Alexander Ortlieb (physics, medical technology and diagnostics, computer-implemented inventions, mechanical engineering, telecoms).

Key clients

Generics UK Ltd. trading as Mylan

Hexal AG

Hexal AG und Klinge Pharma GmbH

LTS Lohmann Therapiesysteme AG

Powermat Technologies Ltd.

Royalty Pharma plc

Takeda Ltd.

The Regents of the University of California, Emmanuelle Charpentier and the University of Vienna

Work highlights

  • Representing The Regents of the University of California, Emmanuelle Charpentier and the University of Vienna in EPO opposition proceedings against seven opponents to the basic patent CRISPR/Cas9.

Uexküll & Stolberg

IP boutique Uexküll & Stolberg, with offices in Hamburg and Munich, is particularly well versed in opposition and appeal proceedings, both before the DPMA and the EPO. Nullity and infringement proceedings are also part of the advisory offering. The team around management trio Peter Franck (head of the chemicals practice group), Bernd Janssen (head of the technology practice group) and Albrecht von Menges (head of the biotechnology practice group) also regularly advise on international proceedings. The longstanding and ongoing instructions by numerous US pharmaceutical giants and other Fortune 500 corporations stand out in particular.

Key clients

Amgen Inc.



Janssen Pharmaceutical



Bristol-Myers-Squibb / Pfizer



Sealed Air

W.R. Grace

Big Ben

Chinese University of Hong Kong

Chr. Hansen

Work highlights

  • Representing the Bristol-Myers-Squibb / Pfizer alliance in several opposition proceedings before the European Patent Office (EPO) against up to eleven opponents.
  • Representing BIG BEN, a manufacturer of accessories for video game consoles, before the Federal Court of Justice in nullity proceedings against Nintendo.
  • Representing Ivoclar Vivadent AG in opposition proceedings against a patent held by 3M Innovative Properties Company.

Vossius & Partner

With its mixed team of patent lawyers and attorneys-at-law, Vossius & Partner is a good choice for nullity and opposition proceedings as well as infringement proceedings. The group routinely handles multi-jurisdictional mandates, often in a leading role. The team impresses with a broad range of technical expertise, with the majority of instructions from the pharmaceuticals, life sciences, electronics and telecoms sectors. Elard Schenck zu Schweinsberg (mechanical engineering), Hans-Rainer Jaenichen (biotechnology and pharmaceuticals), Natalia Berryman (chemicals), Rainer Viktor (including standard-essential telecoms patents), Gerhard Hermann (physics and medical technology), Arnold Asmussen (including medical and automotive engineering), Christian Sandweg (physics), Raphael Salzer (medical and plastics technology), Thomas Schwarze (optical technologies) and Christoph Eisenmann (physics and materials science, among other things) are among the key contacts.

Other key lawyers:

Elard Schenck zu Schweinsberg; Natalia Berryman; Hans-Rainer Jaenichen; Arnold Asmussen; Gerhard Hermann; Rainer Viktor; Christian Sandweg; Thomas Schwarze; Christoph Eisenmann

Zimmermann & Partner Patentanwälte mbB

Zimmermann & Partner Patentanwälte mbB is well-known for its representation of Samsung Electronics in proceedings against Apple. The team is experienced in nullity proceedings and the strategic patent support in infringement proceedings, with expertise in numerous prominent international disputes as well as purely German proceedings. The technical focuses include telecoms, chip technology, LED and LCD technologies, medical products and consumer goods. Munich-based trio Joel Nägerl (telecoms, electrical engineering, chip technology, optics), Benedikt Neuburger (technology, physics) and Dominique Gobert (process and automation technology, energy technology and metal processing) and Frank Steinbach (medical technology, energy technology, measurement and testing technology ) in Berlin are the team’s key figures.

Key clients

Applied Materials

Samsung Electronics Co

General Electric Co.


Nippon Steel Sumitomo Metal Corp.




Bundesanstalt für Materialforschung – und prüfung


NGK Spark Plug Co.


Spectrum Brands

Celtic  Therapeutics

Integrated Circuit Testing

Coty Inc.

Bombardier Transportation GmbH

Motorola Mobility / Lenovo

GE Wind Energy

Xilinx; Inc.

Wonderland Switzerland AG

Burmester Audiosysteme

Continental Automotive GmbH

Ursa Insulation

Arno Friedrich Hartmetall GmbH

Lauda Dr. Wobser GmbH & Co. KG

Quark Pharmaceuticals

Boehmert & Boehmert

IP boutique Boehmert & Boehmert covers a broad technical spectrum and fields both patent lawyers and attorneys-at-law. With six offices in Germany (Bremen, Bielefeld, Berlin, Frankfurt/Main, Düsseldorf, Munich) and three locations abroad (Alicante, Paris, Shanghai), the group is instructed by medium-sized players as well as numerous international clients, primarily from the US and Asia. The patent lawyers’ forensic practice is particularly visible in opposition proceedings before the EPO. Christian Appelt (physics, mechanical engineering, electronics, computer technology) and Markus Engelhard (life sciences, pharmaceuticals, biotechnology) in Munich and Daniel Herrmann (optics, electronics, computer-implemented inventions, among others) in Frankfurt are among the key contacts.

Key clients

NovaTec GmbH Innovative Technologie

Blink AG

Gennova Biopharmaceuticals Limited

King Faisal Specialist Hospital and Research Centre

Samsung Bioepis

Senju Pharmaceuticals

Novo Nordisk A/S

Work highlights

  • Takeover of the complete patent portfolio of NovaTec GmbH Innovative Technologie.
  • Filing a patent before the EPO (including isolated opposition) for the King Faisal Specialist Hospital and Research Centre.
  • Completion of an opposition procedure for Samsung Bioepis.

Eisenführ Speiser

At Eisenführ Speiser, the forensic practice draws on the IP boutique’s many years of prosecution experience. The patent lawyers often cooperate closely with attorney-at-law colleagues in infringement proceedings. Nullity and opposition proceedings, especially before the EPO, complete the patent lawyers’ litigation practice. Key contacts in the group are Lars Birken (mechanical engineering, medical technology), Manuel Söldenwagner (chemicals, life sciences, medical technology), Fabian Fegers (construction technology, mechanical engineering, medical technology), Uwe Stilkenböhmer (chemicals, life sciences), Klaus Göken (construction, electrical -, medical and information technology, mechanical engineering), Jochen Ehlers (electrical engineering, information technology) and Ludger Eckey (electrical, information and medical technology, optics).


At Eisenfuhr, the lawyers and patent attorneys work very well together. Both have a clear understanding of the technologies underlying the patents. They think strategically and coordinate well with other jurisdictions when there are parallel proceedings. They’re also fun to work with.’

Jochen Ehlers is an authority on patent law in Germany. He is very knowledgeable and experienced and inspires confidence in his clients. He is also very flexible in his thinking and creates real strategic added value.’

Key clients

Access Advance LLC

BEGO Unternehmensgruppe

Edwards Lifesciences Corporation

Golden Compound GmbH

HARTING Electric GmbH & Co. KG

Hoya Surgical Optics GmbH

Koninklijke Philips N.V.

Minimax GmbH & Co. KG

Sisvel International S.A.

Via Licensing Corporation

Jones Day

Jones Day's team is well versed in advising on multijurisdictional litigation series with parallel infringement, nullity and opposition proceedings. Munich-based life sciences specialist Olga Bezzubova heads the firm's European patent lawyers team. Dorothée Weber-Bruls in Frankfurt leads the physics team.

Key clients

Blickle Räder + Rollen GmbH u. Co. KG

Celgene Corp.

Lufthansa Technik AG / Astronics

Akebia Therapeutics, Inc.

CJ CheilJedang Corp., South Korea

Puma Biotechnology, Inc.

BioMarin Pharmaceuticals, Inc.

Tung Thih Electronic (TTE) Co. Ltd. / Valeo

Wonderland, Nuna

Innio Jenbacher GmbH & Co OG

Idenix Pharma-ceuticals Inc. (Merck & Co., Inc.)

Keryx Biophar-maceuticals


NXP Semi-conductors N.V.

Rational AG/ Rational International AG

Motherson Group (previously Samvardhana Motherson Group (SMG))

SK Innovation Company Ltd.

Sunrise Medical GmbH & Co.


Conex Universal Limited

Hope Medical Enterprises, Inc.

Genentech, Inc.

Work highlights

  • Representing Puma Biotechnology, Inc. in long-running opposition and appeal proceedings pertaining to a European patent for a cancer therapy.

Prinz & Partner

Prinz & Partner fields a combined team of patent lawyers and attorneys-at-law with offices in Munich and Berlin. The firm not only has a respected application practice but also many years of experience in contentious proceedings, especially in opposition and nullity proceedings. In infringement proceedings, clients benefit from the one-stop shop offering of legal and patent advice. Jochen Sties and Thomas Kitzhofer lead the team from Munich. Bernhard Pfleiderer, formerly in charge of the Hamburg office, retired in December 2020. Johannes Trapp also left the firm in December 2020.

Other key lawyers:

Jürgen Strass

Key clients






Europäische Zentralbank

Faurecia Emissions Control Technologies

Faurecia Interior Systems



Rohde & Schwarz

Inteva / Roof Systems Germany GmbH

Süss Microtec AG

GB Boucherie NV

Dehn SE + Co KG

Delo Industrieklebstoffe GmbH & Co. KGaA

Langmatz GmbH

Ohrmann Montagetechnik

Schill + Seilacher

Sartorius Stedim Biotech GmbH

Jochen Schweizer

Metrona Wärmemesser Union GmbH


Tintometer GmbH

Galata Chemicals

BCS Automotive Interface Solutions GmbH

ABB Schweiz AG

Schischek GmbH

Curiosity Diagnostics  Sp. z o.o.

micro resist technology GmbH

Alfred E. Tiefenbacher (GmbH & Co. KG)

Medac GmbH

Prüfer & Partner

Prüfer & Partner stands out among the competition thanks to its special expertise in patents, which are to be protected both in the USA before the USPTO and in Europe. The team around practice heads Jürgen Feldmeier, Dorothea Hofer and Andreas Oser acts in both opposition and nullity proceedings and also offers patent lawyer support in infringement proceedings. The IP boutique is based in Munich.


The team has many years of experience.’

Jürgen Feldmeier offers solution-oriented advice.’

Key clients

Brother Industries

Biedermann Technologies GmbH & Co. KG

Multipond Wägetechnik GmbH

EOS GmbH Electro Optical Systems

Knorr Bremse AG

Freiberger Compound Materials


Hymmen GmbH Maschinen und Anlagenbau

Terumo Corporation

Mitsubishi Electric Co.

Heidolph Instruments GmbH & Co. KG


Novartis – Sandoz (inkl Hexal, Lek Pharmaceuticals)

Trumpf Medizintechnik GmbH & Co. KG

Trumpf Werkzeugmaschinen

Toray Industries

Hyve AG

Kesseböhmer Produktions GmbH & Co. KG

Osram GmbH

B Braun Melsungen AG

Tachi Co. LTD. (JP)

Knauf Insulation

Krka d.d.

Heusch GmbH & Co. KG


Curadis GmbH

QRSkin GmbH

enzymmanagement ag

BHS Technologies

Wachtel GmbH

Hilgenberg GmbH

Nipro Corporation (JP)

kopter germany GmbH

SeedX Technologies Inc.(Israel)

Research Institute Of Tsinghua University In Shenzhen

CloudMinds (Shanghai) Robotics Co., Ltd.

Suzhou Teknect Engineering Co.

Shanghai Power Equipment Research Institute Co., Ltd.

GK8 LTD (Israel)


KAHR MEDICAL Ltd. (Israel)

Qubig GmbH

Weickmann & Weickmann

Weickmann & Weickmann specialises in patents in the fields of mechanics, electrical engineering and IT as well as life sciences and chemicals. The Munich-based IP boutique has a combined patent lawyer and attorney-at-law team and offers experience in opposition and appeal proceedings as well as in nullity actions and infringement disputes. Practice heads are Markus Herzog and Brigitte Böhm. Manuel Millahn, who is part of the firm’s technology team, made partner in January 2021.

Practice head(s):

Markus Herzog; Brigitte Böhm

Key clients



Apogenix GmbH

Evanium Healthcare

Fischerwerke GmbH & Co. KG

Fränkische Industrial Pipes

Kemijski Institut; National Institute of Chemistry

Lead Discovery Center


MAB Discovery


Media Pharma


Peter & Traudl Engelhorn-Stiftung

Römer & Heigl GmbH