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Alexander Ortlieb


German Patent Attorney

European Patent Attorney

UPC Representative


A large part of Alexander’s work involves prosecuting international, European and German patent and utility model applications. He has particular expertise in conducting opposition proceedings, in particular before the Boards of Appeal of the European Patent Office. He also has wide experience in preparing freedom-to-operate and validity opinions and represents clients in patent litigation matters.

His specialist fields are physics, medical technologies and diagnostics, computer-implemented inventions, mechanical engineering and telecommunications.

since 2015
Partner, shareholder and managing director at Maiwald
Worked in a specialized IP firm in New York and in the IP department of one of the largest US medical technology innovators in Boston in order to gain insights into US patent law and practice.
since 2010
Patent attorney at Maiwald
In-house patent counsel with internationally operating aerospace corporation
2007 - 2010
Patent attorney trainee at Maiwald

Admitted to practice before the UPC
Admitted to practice as a European patent attorney
Admitted to practice as a German patent attorney
2007 - 2010
Studied law for patent attorneys at the University of Hagen
2000 - 2006
Studied physics and economics at the Albert Ludwig University of Freiburg and Ludwig Maximilian University of Munich
1999 - 2003
Internships at Daimler Chrysler AG and at General Semiconductor (now Vishay Corp.)

  • Patent prosecution and portfolio management
  • Filing strategies and drafting patent applications
  • Opposition, appeal and nullity proceedings
  • Patent infringement proceedings
  • Freedom-to-operate and validity opinions

  • Listed as "Leading" in the Patent Prosecution category, as "Excellent" in the Patent Litigation category and as "Highly Recommended" in the Healthcare & Pharmaceuticals category in the Leaders League Rankings Germany 2024
  • Recommended in Handelsblatt | Best Lawyers "Germany's Best Lawyers" 2020, 2021, 2022, 2023, 2024
  • Recommended in MIP IP Stars 2016, 2021, 2022, 2023, 2024
  • Recommended in Legal 500 EMEA 2021, 2022, 2023, 2024
  • Recommended in Legal 500 Deutschland 2021, 2022, 2023, 2024
  • Recommended in IAM Patent 1000 “World’s Leading Patent Professionals”, 2022, 2023
  • Listed as "Excellent" in the Leaders League Rankings Germany 2022 and 2023 in the categorie Patent Prosecution

  • Representation of a prestigious US university before the EPO’s Enlarged Board of Appeal in the G1/16 case, where the Board handed down a landmark decision on the allowability of disclaimers

  • German Patent Attorney Association
  • epi
  • VPP
  • GRUR

  • German
  • English