Mr Alexander Haertel > Bardehle Pagenberg > Dusseldorf, Germany > Lawyer Profile

Bardehle Pagenberg

Work Department

Intellectual Property/Patents, Designs, Licensing & Technology Transfer


Attorney-at-Law (Rechtsanwalt), Partner

»Litigating patents is a complex and strategically challenging process. It involves close cooperation with colleagues and swift and efficient coordination with clients. My aim is to help clients stay on top of things and make the right decisions no matter how complex the case may be.«

Alexander Haertel specializes in patent litigation in all technical areas. Additionally, his expertise covers unfair competition law as well as design and trade secrets. As a litigator, Alexander Haertel has successfully handled hundreds of cases for his clients, always aiming to combine high-quality and relevant advice.

Alexander Haertel has expert knowledge with a broad technological background, particularly in the automotive and telecommunications industry, life sciences, glass manufacturing, mechanical engineering, 3D printing, and many more.

He represents clients in patent infringement proceedings, in nullity, opposition and cancellation proceedings before the various German infringement courts, the German Federal Patent Court, the German Federal Court of Justice, the European Patent Office, and the German Patent and Trademark Office. His vast experience in coordinating and conducting cross-border patent litigation proceedings makes him a sought-after partner of his clients who operate on an international scale.

Alexander Haertel regularly speaks at national and international expert conferences, for example on LES congresses or conferences hosted by professional associations.


2020 – today

Partner at BARDEHLE PAGENBERG, Duesseldorf, Germany

2016 – 2020

Partner at Kather Augenstein, Duesseldorf, Germany

2012 – 2015

Partner at Preu Bohlig & Partner, Duesseldorf, Germany

2006 – 2012

Associate at Preu Bohlig & Partner, Duesseldorf, Germany

2004 – 2005

Associate at Heitmann von Meding, Duesseldorf, Germany


German, English


Alexander Haertel co-chairs the European Committee of LESI, is the Vice Chair of the Dispute Resolution Committee of LESI as well as an international delegate of LES Germany. He also is a member of the Working Group on Intellectual Property and Media (AGEM) of the German Association of Lawyers (Deutscher Anwaltverein). Furthermore, he is a member of EPLAW, VPP and GRUR.



Qualification as Attorney-at law (Rechtsanwalt)

1996 – 2004

Studies of law and legal training, Marburg/Münster/London

Lawyer Rankings

Deutschland > Gewerblicher Rechtsschutz > Patentrecht: Rechtsanwälte: Streitbeilegung

Bardehle Pagenberg vereint rechts- und patentanwaltliche Expertise unter einem Dach, was die Kanzlei für parallel geführte Verletzungs- und Rechtsbestandsverfahren besonders geeignet macht. Die Kartellrechtsspezialisten im Team machen die IP-Boutique zudem zu einer guten Wahl für FRAND-Mandate. Besondere Sektorschwerpunkte liegen auf dem Automobilsektor, der Telekommunikations-, Elektronik- und Softwarebranche. Das Mandatsvolumen im Pharmasektor steigt stetig. Mit Büros in München und Düsseldorf, Paris und Barcelona sowie einem Netzwerk etablierter Kanzleien im Ausland für grenzüberschreitende Mandate ist die Kanzlei für nationale und international geführte Mandate gut gerüstet. Der doppelt qualifizierte Johannes Heselberger, Tilman Müller-Stoy und Peter Chrocziel bilden das Führungstrio. Im Juli 2020 schloss sich Alexander Haertel von Kather Augenstein Rechtsanwälte dem Team an. Anna Giedke, zu deren Spezialgebieten Halbleiter- und IT-Patente gehören, wurde im Januar 2021 zur Partnerin ernannt.

Germany > Intellectual property > Patent litigation: solicitors

Bardehle Pagenberg combines the expertise of both patent lawyers and attorneys-at-law, which makes the firm particularly suitable for parallel infringement and validity proceedings. The antitrust law specialists in the team also make the IP boutique a good choice for FRAND mandates. Particular sector focuses are on the automotive, telecoms, electronics and software industries, whereas the advice to clients from the pharmaceutical sector is a growth area. With offices in Munich and Düsseldorf, Paris and Barcelona as well as a network of internationally established law firms, the group is well equipped for national and international mandates. The dually qualified Johannes Heselberger and Tilman Müller-Stoy form the leading duo. In July 2020, Alexander Haertel from Kather Augenstein Rechtsanwälte joined the team. Anna Giedke, whose areas of expertise include chip and IT patents, made partner in January 2021.