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The Legal 500 Deutschland - Führende Namen 2022

Dr. Holger A. Kastler

Lawyer | Managing Associate


Intellectual Property


T +49 30 88 060 910
F +49 30 88 060 919

Areas of expertise


IP: Patent Law, Employee Inventions, Copyright Law, Music Law, Licensing, Competition Law

IT: Software Development and Hosting, IT Co-operations, Open Source Licenses

Protection of Trade Secrets and Know-how

Contract Drafting and Negotiations, Transactions

Litigation and Dispute Resolution







Enforcing patents of an international OEM supplier of car parts (Pan-European patent litigation)

Defending an international OEM against alleged infringement of patents of a competitor (Representation of the OEM during German patent infringement proceedings and advise on nullity action)

Defending a manufacturer of laser toner cartridges against an international printer manufacturer due to alleged patent infringement

Advising an internet and mobile telecommunication service provider regarding FRAND licensing due to alleged infringement of standard-essential patents (SEP)

Representing and advising an OEM in Special Master Proceedings (similar to mediation) with a competitor due to alleged patent infringement

Enforcing patents of a manufacturer of medical products with a preliminary injunction

Advising an international pharmaceutical company regarding research & development agreements

Advising an international chip manufacturer regarding German and European patent law

Advising an international manufacturer of semi-conductor products regarding license agreements

Advising an international manufacturer of electronic components regarding IP agreements and transactional aspects (due diligence) for setting up a joint venture with a leading chip manufacturer

Advising a pharmaceutical company regarding IP and regulatory aspects during a reverse IPO

Advising an internet and mobile telecommunication service provider regarding the introduction of a Single Sign-On service (IP and commercial agreements)

Advising a telecommunication company regarding a hardware and software development agreement and representing client during negotiations

Advising an international manufacturer of Virtual Reality (VR) products during their product launch in the EU (commercial agreements and regulatory aspects)

Advising an international logistics company regarding their General Terms and Conditions and sample agreements for the German and European market

Advising a start-up regarding works created by Artificial Intelligence (AI) and the implications for the protection and licensing of IP

Professional background and education


Since 2019

Hyazinth, Associate


Morrison & Foerster LLP, Attorney


University Konstanz, Dr. iur. (PhD equivalent)


Bird & Bird LLP, Attorney


Attorney (self-employed)


Kammergericht (Berlin), Assessorexamen (German equivalent to Bar Exam)


Universität Konstanz, Postgraduate legal studies


Universität Bilgi, Istanbul, Legal studies, studies of international relations


Universität Konstanz, Legal studies

Published works (selection)


Co-Author of „FRAND Case Law in Europe after Huawei v. ZTE“ (forthcoming)

Co-Author of „Technology Standardization in the EU: Improving European Companies’ Competitiveness in the Areas of 5G, Cloud Computing, Big Data, IoT, and Cybersecurity“ (IT Law Today, Vol. 26, No. 10, 2018, reprint in: The Licensing Journal, forthcoming)

Co-Author of „Update on the Implementation of the EU Trade Secrets Directive into German Law“

Co-Author of „Harmonization of Trade Secrets in Europe and New US Trade Secrets Law Gets the Green Light—What Do These Changes Mean for Companies in Germany, the UK and the US?“

Föderaler Rechtsschutz: Personenbezogene Daten in einem Raum der Freiheit, der Sicherheit und des Rechts (Springer, 2016)

Co-Author of „First German Decisions Applying the ECJ’s Huawei v. ZTE Framework on Injunctions for Standard Essential Patents“ (February 18, 2016)

Co-Author of „Trade Secrets“ (edited by James Pooley): Chapters „European Union“ and „Germany“ (edition 2016) by contributing editor Holger Kastler

DJs als Urheber? Rechtliche Betrachtung eines DJ Mix (2010)



European Legal Technology Association (ELTA)

German Association for Intellectual Property and Copyright Law (GRUR)

German-American Lawyer's Association (DAJV)

International Association for the Protection of Intellectual Property (AIPPI)

Licensing Executives Society (LES)

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New address | From June 1st, 2022 you will find us at Lennéstrasse 1, 10785 Berlin.