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Dr. Marlen Yan is a German qualified attorney (Rechtsanwältin) and Counsel in Quinn Emanuel’s Mannheim office. She was admitted to practice in 2010.

Marlen focuses on IP litigation with a particular emphasis on patent litigation. Since joining the firm in 2010, Marlen has represented national and international clients in a number of cases covering a wide range of technologies, i.e. telecommunications, automotive and biotech.

Marlen graduated from Humboldt University of Berlin before starting her legal clerkship at the Kammergericht (Higher Regional Court) Berlin. She obtained a doctorate degree (Ph.D.) in law from the Technical University of Dresden and an LL.M. in Intellectual Property Law from the Technical University of Dresden and the Strasbourg University (France).

Marlen has represented clients before the major German patent infringement courts (Duesseldorf, Mannheim and Munich) at district court and appellate level and in nullity proceedings before the German Patent Court and the Federal Supreme Court.

Legal 500 ranked Marlen in 2023 as a “core attorney” of the team.

  • Appellate Practice
  • Intellectual Property Litigation
  • Life Science: Biotechnology
  • Life Science: Pharmaceutical Patent Litigation
  • Life Sciences Litigation
  • Litigation Representing Plaintiffs
  • Patent Litigation
  • Product Liability & Mass Torts Litigation
  • Strasbourg University (France) & Dresden University of Technology
    (LL.M. 2009-2010)
  • District Court Berlin
    (Legal Clerkship, 2006-2008; Second State Examination, 2008)
  • Berlin Humboldt University
    (Law Study, 2003-2006; First State Examination, 2006)
  • Zhongnan University of Economics and Law, Wuhan, China
    (Legal Language Study, 2002-2003)
  • The German Bar (Rechtsanwaltskammer Karlsruhe)
  • German
  • English
  • French
  • Chinese
  • Legal 500 Deutschland – Recommended Lawyer for Intellectual Property: Patent Litigation, 2023
  • Best LL.M. Thesis of Year 2010 (awarded by Freshfields Bruckhaus Deringer)
  • Member, DAV (German Bar Association)
  • Member, GRUR (German Association for the Protection of Intellectual Property)
  • Member, AIPPI (International Association for the Protection of Intellectual Property)