MUNICH

BDPE Patent Attorneys and Attorneys at Law

Ottostraße 4
D-80333 München

Fon +49 (0)89 – 21 53 819-0
Fax +49 (0)89 – 21 53 819-19

mail@bdpe.de

DÜSSELDORF

BDPE Patent Attorneys and Attorneys at Law

Platz der Ideen 2
D-40476 Düsseldorf

Fon +49 (0)211 – 30 27 66-0
Fax +49 (0)211 – 30 27 66-10

mail@bdpe.de

Dr. Rolf Lechner

Patent attorney | München

Patent Litigation

„Friedrich Emmerling can provide actual strategic advice due to his excellent technical understanding and wealth of experience. In my opinion, having an eye for the “bigger picture” while simultaneously knowing the details is what sets him apart from many others.“

– The Legal 500 Deutschland 2025

„Franck Klein deeply understands all the relevant technical details of the related technologies and, based on this, selects the best arguments and provides us with great results.“

– Chambers Global Guide 2025

„Friedrich Emmerling is always willing to go one step further. Franck Klein has a high level of technical expertise.“

– The Legal 500 Deutschland 2025

„Friedrich Emmerling's technical knowledge is exceptional. He is a very good patent attorney.“

– Chambers Global Guide 2025

„Karl-Ulrich Braun-Dullaeus can also explain very complex technological contexts in a generally understandable way. In my experience, he was often able to develop decisive arguments, especially when working together in large joint defense groups.“

– The Legal 500 Deutschland 2025

„Franck Klein has excellent analytical skills.“

– Chambers Global Guide 2025

„Friedrich Emmerling - very experienced, strategically very adept.“

– The Legal 500 Deutschland 2025

„Friedrich Emmerling is a goal-oriented lawyer who will not give up fighting for additional arguments if he sees any chance of obtaining better results for his clients.“

– Chambers Global Guide 2025

„Franck Klein: strategically and professionally convincing; efficient way of working and convincing communication.“

– The Legal 500 Deutschland 2025

„Franck Klein is a very high-quality lawyer whose technical proficiency is exceptional.“

– Chambers Global Guide 2025

„Friedrich Emmerling is a very experienced lawyer and a strong strategic thinker who knows judges and opponents inside out.“

– Chambers Global Guide 2025

„Franck Klein is always very much available.“

– Chambers Global Guide 2025

„Friedrich Emmerling is an excellent strategist who has a wealth of experience and performs convincingly.“

– Chambers Global Guide 2025

„Friedrich Emmerling's team is characterized in particular by its considerable experience in contentious patent proceedings. All members of the team are very sociable, making it easy to work with them. Work products are delivered quickly, punctually and are always very well-founded and meaningful.“

– The Legal 500 Deutschland 2025

„Highly committed team with an efficient and structured way of working, very good specialist knowledge and excellent availability.“

– The Legal 500 Deutschland 2025

„High level of willingness to get to grips with and understand all the details of the technology. Very short response time.“

– The Legal 500 Deutschland 2025

„Franck Klein also offers up his expertise on this mandate and earns praise from another satisfied patron for being “extremely skilled, open minded and collaborative. He takes the time to discuss matters in person, which speeds up the process and brings in better results thanks to the exchange of information and brainstorming that happens during such conversations. Franck is also proficient in all three official languages of the EPO, so he grasps the nuances of language used in patent applications and can propose new arguments in opposition proceedings on this basis.“

– IAM Patent 1000 Guide 2024

„Friedrich Emmerling is a high-quality lawyer whose technical proficiency is exceptional.“

– Chambers Global Guide 2025

„Michael Behmke is very responsive and shows attention to detail.“

– IP STARS 2024

„Franck Klein also offers up his expertise on this mandate and earns praise from another satisfied patron for being “extremely skilled, open minded and collaborative. He takes the time to discuss matters in person, which speeds up the process and brings in better results thanks to the exchange of information and brainstorming that happens during such conversations. Franck is also proficient in all three official languages of the EPO, so he grasps the nuances of language used in patent applications and can propose new arguments in opposition proceedings on this basis.“

– IAM Patent 1000 Guide 2024

„Further strengthening the set, Markus Kreuzberg thrives when working with domestic companies seeking protection across the globe. He adroitly oversees the drafting and filing of international patent applications for companies including Conradi+Kaiser, a family-owned business that has established itself as a leader in rubber moulded parts.“

IAM Patent 1000 Guide 2024

„They have vast experience in litigating telecom patents. The team is very approachable and easy to work with. The responsiveness is great, and the knowledge of EPO as well as FPC case law is unbeatable.“

- IP STARS 2024

„I would choose BDPE for their excellent technical expertise in the area of telecommunication as well as for their professionalism. Their managing partner, Friedrich Emmerling, would approach a problem from all possible directions and find a solution for the client.“

- IP STARS 2024

„Excellent collaboration during patent litigation, with knowledge about technological aspects of the case.“

- IP STARS 2024

„Karl-Ulrich Braun-Dullaeus is very experienced, accessible, and good-humoured. He is open for legal tech.“

- IP STARS 2024

„We selected them because of their outstanding performance in nullity actions and defence work in infringement actions.“

- IP STARS 2023

„The firm understands the business of the client and is clear and transparent in its communication. Excellent forensic work.“

- IP STARS 2023

„In the fields of physics, electrical engineering and electronics, and mechanical patent litigation, the firm sets new standards for Germany.“

- The Legal 500 – Germany

„For contentious proceedings, in particular for nullity proceedings or infringement proceedings accompanied by patent attorneys, Maikowski & Ninnemann, BRAUN-DULLAEUS PANNEN EMMERLING, df-mp as well as the already mentioned Bardehle Pagenberg and Cohausz & Florack are among the top addresses; Zimmermann & Partner Patentanwälte mbB and Maiwald Intellectual Property also enjoy an excellent reputation in the market.“

- The Legal 500 – Germany

„Four partners and several staff 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, suggesting workarounds to problems, and usually winning cases or suggesting useful solutions.“

- The Legal 500 – Germany

„Service-oriented patent attorneys who go above and beyond for their clients. The attorneys exhibit the knowledge level of top technical specialists and, through this, light can be shed on weak arguments of the opposite party.“

- IAM Patent 1000 Guide 2022

„The patent attorneys are all highly experienced and drive their work while being practical and efficient.“

- Chambers 2021

„The team is detail oriented, sensible and shows great judgement.“

- IAM Patent 1000 Guide 2021

Dr. Rolf Lechner| Patent attorney| BDPE München

Dr. Rolf Lechner has been working in the field of intellectual property since 2019. Due to his professional experience and technical training, he has in-depth knowledge in the fields of information technology, mechanical engineering, automotive engineering and medical technology. At BDPE, he specializes in patent disputes.

read more

Prior to joining BDPE, he focused on opposition proceedings and conducting prosecution as well as drafting patent applications before the European Patent Office and the German Patent and Trademark Office.

Rolf studied mechanical engineering at Imperial College London (MEng). His mechanical engineering studies included lectures on mechatronics, automotive engineering and fracture mechanics. After graduating, he studied industrial engineering at Technical University of Munich (MSc). During his studies at the Technical University of Munich, he focused, among other things, on electricity market design in Germany and the economic potential of photovoltaic systems in Germany. He completed his doctorate at the Graz University of Technology (Dr. techn.) in close co-operation with BMW in the field of passive vehicle safety.
Prior to his work in intellectual property, Rolf gained practical experience in various companies, including BMW in Munich (DE), CERN in Geneva (CH), Bertrandt in Munich (DE) and KUKA in Augsburg (DE).

Rolf is a member of the International Association for the Protection of Intellectual Property (AIPPI), the Institute of Professional Representatives before the European Patent Office (epi), the Federal Association of German Patent Attorneys (BDPA) and the International Federation of Industrial Property Attorneys (FICPI).

Fon +49 (0)89 – 21 53 819-24
rolf.lechner@bdpe.de

Qualifications

  • Patent Attorney
  • European Patent Attorney
  • European Trademark and Design Attorney
  • Degree in engineering (Imperial College London) and doctorate (TU Graz)
  • Degree in economics (TU Munich)

Authorised to represent

  • Germany:
    • Federal Supreme Court (only patent nullity proceedings)
    • Federal Patent Court (BPATG)
    • German Patent and Trade Mark Office (DPMA)
  • Europe:
    • European Patent Office (EPO)
    • EU Intellectual Property Office (EUIPO)
  • International:
    • International Bureau (IB) of the World Intellectual Property Organisation (WIPO)

Technical fields

Information technology

Mechanical engineering

Automotive engineering

Medical technology