Christian Welkenbach

Attorney admitted to practice in Germany, certified specialist for information technology law and intellectual property law

Practice areas
  • IT (IT contracts, terms and conditions, project contracts, outsourcing contracts)
  • Internet law (including E-commerce and domain law, terms of use)
  • E-commerce law
  • IP law (including copyright law, design patent law)
  • Trademark law (national and international) trademark protection and litigation
  • Competition law
  • Compliance and data protection/privacy law

Nationally and internationally operating large and medium-sized companies in the following sectors:

  • Software
  • Hardware
  • Media
  • Social Media
  • Internet and E-commerce
  • Mail order business
  • Publishing

Contact information

How can I assist you? Please contact us!

Phone: +49 (0) 6131 / 302 90 46-0
Fax: +49 (0) 6131 / 302 90 46-6
German (native language)
English (fluent, negotiating level)

Curriculum vitae

Brief biography of Christian Welkenbach

  • Born in 1974
  • Studied at the Universities of Gießen and Mainz
  • Law clerkships in Koblenz and Munich (BMG Music Publishing Germany)
  • Admitted to the bar in 2003
  • 2008: Certified specialist for information technology law
  • Partner of Res Media | Kanzlei für IT- und Medienrecht, Mainz (2009 – 2013)
  • 2012 : Certified specialist for IP law
  • 2013:Partner of TCI Rechtsanwälte Mainz

Publications and lectures

Christian Welkenbach regularly publishes legal papers and articles, including contributions to legal blogs (e.g., particularly in the fields of IT law, online law and trademark law. Furthermore, he is a regular contributor to Internet World BUSINESS ( and to the online magazine INTERNETHANDEL ( In addition, Christian Welkenbach regularly writes on legal issues relating to IT security in the journal ( On July 31, 2012 a guideline for processing and reviewing for "Social Media in Banks and Savings Associations" was published, which was co-authored by Christian Welkenbach and in which he discussed the legal parameters and risks for banks relating to social media (s.

Lectures and publications (selected)
GRUR-Prax Heft 4/2014 (legal journal)

(Superior Court of Celle, judgment of December 19, 2013 - 13 U 64/13: Threat of provision of data to SCHUFA, a credit rating agency)

Press: GRUR

Social Media und Markenrecht [social media and trademark law] Press: DG VERLAG, Hyatt Regency Mainz

Event: Marketing-Tage 2013

Teaching Activity

  • Instructor at the University of Applied Sciences, Mainz for copyright and media law (since 2013)
  • Instructor for the contract law of information technology at Media Institute Mainz (starting 2016)