BRAUN-DULLAEUS PANNEN EMMERLING > Munich, Germany > Firm Profile

Ottostraße 4
D-80333 Munich

Intellectual property > Patent litigation: patent lawyers Tier 1

IP boutique BRAUN-DULLAEUS PANNEN EMMERLING acts with a clear focus on contentious patent proceedings. The extremely experienced team is best known for its representation in strategic disputes pertaining to standard-essential patents in mobile communications and its active litigation practice in the connected cars sphere; patents in the power electronics area, particularly solar energy, represent another practice mainstay. The group also represents clients in nullity and opposition proceedings and is regularly called upon in infringement proceedings. In addition to numerous multi-jurisdictional disputes, the team further handles complex German proceedings, especially for German medium-sized companies which frequently instruct the practice with IP prosecution matters. Practice heads Friedrich Emmerling and Karl-Ulrich Braun-Dullaeus as well as Franck Klein (wired communication, electronics, mobile communications) are the key contacts.

Other key lawyers:


The law firm is setting new standards for Germany in the fields of physics, electrical engineering and electronics as well as mechanical patent litigation.’

‘Four partners and several collaborators work proactively to provide a complete service, ranging from providing non-infringement or infringement arguments, successfully fighting for or against the validity of patents, knowing about and finding necessary evidence, proposing workarounds and usually to winning cases or suggesting useful solutions.’

‘Fritz Emmerling is very successful in coordinating international litigation.’

Fritz Emmerling is great at analyzing cases, discovering strengths and weaknesses and finding solutions for the client. He knows what kind of external support is required. His cooperation with litigators, but also with teams in other countries or in joint defense groups is moderate and convincing. I have yet to see a comparable German patent lawyer in litigation.’

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 before the Federal Patent Court, the Federal Court of Justice and the European Patent Office, providing technical support in the parallel infringement proceedings and strategic advice.
  • Representation of Deutsche Telekom before the Federal Patent Court, the Federal Court of Justice and the European Patent Office as well as technical support in the parallel infringement proceedings and strategic advice.
  • Technical support for Philip Morris in German infringement proceedings in cooperation with lawyers at the district courts and higher regional courts.

Intellectual property > Patent prosecution Tier 4

As an IP boutique with a high level of litigation experience, BRAUN-DULLAEUS PANNEN EMMERLING applies its wealth of expertise in opposition, nullity and infringement proceedings also in prosecution matters. The boutique offering manages patent applications before the DPMA, the EPO and internationally and enjoys the trust of numerous international and national corporations, also with regards to strategically important patent portfolio management. The practice focus thereby focuses on telecommunications and electrical engineering. Karl-Ulrich Braun-Dullaeus, Friedrich Emmerling and Franck Klein in Munich as well as Markus Kreuzberg in Düsseldorf are the key contacts.

Practice head(s):

Karl Ulrich Braun-Dullaeus; Friedrich Emmerling

Other key lawyers:

Key clients

Deutsche Telekom AG

Hochland SE

Huawei Technologies

VVG-Befestigungstechnik GmbH & Co KG

Honsel Umformtechnik GmbH

Rhodius Schleifwerkzeuge GmbH & Co KG


Systec POS-Technology GmbH

Systec Controls

Conradi + Kaiser GmbH

Work highlights

  • Advice to Deutsche Telekom AG on patent applications (PCT, DPMA and EPA) for financially important areas, which mostly include wide-ranging, complex technologies.
  • Advising Huawei Technologies on patent applications (PCT, DPMA and EPO), including opposition proceedings in connection with extensive patent disputes in the three technology fields of network equipment, smartphones and photovoltaic inverters.
  • Advice to Hochland SE on patent applications (PCT, DPMA and EPO).

Intellectual property > Trade marks

BRAUN-DULLAEUS PANNEN EMMERLING specialises in national and international IP portfolios with particular focus on trade mark litigation and possesses significant expertise in the furniture as well as PR and advertisement industries.

Personal. Exclusive. Long-term.

BRAUN-DULLAEUS PANNEN EMMERLING is a genuine service boutique – we serve our clients with the explicit promise to guarantee exclusive, personal advice in the long term.

Especially when it comes to IP litigation, we keep the risk of a conflict of interest as low as possible for you.

Our partners have been well-known contacts in their fields for almost 20 years and are among the few established experts in our clients’ industries.

This means we can support you not only in an advisory capacity, but also as real business partners who understand your business.

The Firm

The lawyers of BRAUN-DULLAEUS PANNEN EMMERLING specialise in litigation and prosecution in the field of intellectual property. We combine branch-specific and technical expertise with legal competence.

Our expertise is focused on patent and utility model law, in trademark, design and copyright law, as well as in competition, domain and employee invention law. Working closely together, we unite legal expertise and technical knowledge for the benefit of our clients.

We work for clients in Germany and abroad and have an international network of contacts with other law firms and patent attorneys.


Legal representation in patent, trademark and design litigation, as well as in copyright and competition proceedings.

BRAUN-DULLAEUS PANNEN EMMERLING protects innovations, new technologies and products, brands and new designs, and handles the corresponding grant, appeal and opposition proceedings.

Legal activities:

  • Patent Litigation
  • Patent Prosecution
  • Trademark Litigation
  • Trademark Prosecution
  • Designs, Copyrights, Unfair Competition

Technical areas of expertise:

  • Automotive
  • Electrical Engineering
  • Mechanical Engineering
  • Medical Engineering
  • Software
  • Sports Equipment
  • Telecommunications


  • Communication Agencies
  • Consumer Goods
  • Energy Suppliers
  • Furniture Retail


BRAUN-DULLAEUS PANNEN EMMERLING promotes diversity! Our attorneys and additional staff members speak as many as ten different languages and represent nine different nationalities. This makes it possible, for example, for our firm to interact directly with a broad client base across the globe.

We are committed in our hiring practices to seek out diverse lawyers and ensuring that they will be strategically invested in and advanced.

BDPE does not discriminate based on race, colour, sex, language, religion, national or social origin, birth or other status such as disability, age, marital and family status, sexual orientation, gender identity and health status.

Department Name Email Telephone
Patent Litigation Dr. Karl-Ulrich Braun-Dullaeus +49(0) 211 – 302766-0
Copyright & Trademarks Heinrich Georg Pannen +49(0) 211 – 302766-0
Patent Prosecution Markus Kreuzberg +49(0) 211 – 302766-0
Patent Litigation Dr. Friedrich Emmerling +49 (0)89 – 21 53 819-0
Photo Name Position Profile
Stefan Demmel photo Stefan Demmel Patent Attorney
Friedrich Emmerling photo Dr Friedrich Emmerling Equity Partner, Patent Attorney
Franck Klein photo Franck Klein Salary Partner
Jörg Kohlschmidt photo Jörg Kohlschmidt Partner, Patent Attorney
Ezgi Yilmaz photo Dr Ezgi Yilmaz Patent Attorney
Melanie Zani photo Melanie Zani Patent Attorney
European Patent Institute
German Association for the Protection of Industrial Property and Copyright Law (GRUR)
Federal Association of German Patent Attorneys
International Federation of Industrial Property Attorneys (FICPI)