Dr. Till Jaeger

Dr. Till Jaeger

Certified Copyright and Media Law Attorney

Till Jaeger has been a partner at JBB Rechtsanwälte since 2001. He advises large and medium-sized IT businesses as well as government authorities and software developers on matters involving contracts, licensing and online use. Till Jaeger also covers conventional areas of copyright law and entertainment law, advising corporate clients on matters relating to open content, web design and photography.

One particular focus of Till Jaeger’s work is on the legal issues created by open source software. He is co-founder of the Institute for Legal Aspects of Free & Open Source Software (ifrOSS), contributing to its work with academic publications, lectures and seminars in the fields of software law and copyright law. He provides advice on compliance with open source licenses and on compatibility issues, and helps developers and software companies to enforce licenses both in Germany and abroad.

Till Jaeger is a lecturer at the Leibniz University of Hanover in the subjects of IT law and IP law and he covers all aspects of licensing under intellectual property law, including licenses for patents and know-how as well as for copyright works.

Who's Who Legal has identified Till Jaeger for recognition in the Telecommunications Media & Technology chapter of Who's Who Legal: Germany 2017.


Language Skills

French, English



For the past several years Till Jaeger has frequently spoken in seminars and workshops on topics within his core areas of specialization.

An overview on these activities can be found on the ifrOSS website.



Deutsche Gesellschaft für Recht und Informatik e.V. (German Society for Law & Computer Science)

Deutsche Vereinigung für gewerblichen Rechtsschutz und Urheberrecht e.V. (German Association for the Protection of Intellectual Property)

Institut für Rechtsfragen der Freien und Open Source Software (Institute for Legal Issues of Free and Open Source Software)

Arbeitsgemeinschaft Informationstechnologie im Deutschen Anwaltverein (“Information Technology”: study group at the German Lawyers’ Association (DAV))

General Counsel Open Source Automation Development Lab (OSADL) eG

Focus Areas

Copyright Law
Licensing Law
IT/ Software


  • Open Source Software - Legal Framework for Free Software (with Axel Metzger)

    C.H. Beck, 4. ed., Munich 2016
  • Chapter Germany (with Tim Engelhardt)

    Van den Brande/Coughlan/Jaeger (Ed.), The International Free and Open Source Law Book, Open Source Press, Munich, Germany 2011
  • USA/CAFC - Open Source Licensing – Comment on “Jacobsen v. Katzer“ (with Julia Gebert)

    IIC 2009, p. 345