Partner
Dr. Johannes Druschel, a German attorney-at-law, focuses on patent litigation, representing clients in both patent infringement and validity proceedings before German district and higher regional courts, the Federal Patent Court, the German Patent and Trademark Office (DPMA), the European Patent Office (EPO) as well as the Unified Patent Court (UPC). His cases cover a wide range of technologies, including mechanics, telecommunications, semiconductors, automotive, medical devices, and consumer products.
Johannes advises companies on contentious patent matters and represents them in related infringement, nullity, cancellation, and opposition proceedings, including preliminary injunction and inspection proceedings. His experience includes arbitration proceedings that laid claim to a patent co-ownership. Johannes handles patent litigation proceedings across all major technical fields, including mechanics, electronics, telecommunications, pharmaceuticals, chemistry, and semiconductors. He has particular experience handling complex international patent litigation cases concerning telecommunication and medical devices.
Johannes has consistently been recognized for his contributions in the field of patent litigation. The Legal 500 listed Johannes as a recommended lawyer for intellectual property: patent litigation; Leaders League highlighted his leadership in patent litigation; and he was featured in Best Lawyers/Handelsblatt: Ones to Watch for Intellectual Property in Germany.
Represented Taiwanese semiconductor manufacturer in patent infringement proceedings*
Represented U.S. company in patent infringement and nullity proceedings concerning medical devices*
Conference
IAM Live: Navigating the UPC 2026 IAM Live: Navigating the UPC 2026
November 4, 2026
Paris
Conference
2026 TIPA International Symposium 2026 TIPA International Symposium
October 30, 2026
Taipei City
Articles
U.S. and European Automotive Updates: Installment 2 U.S. and European Automotive Updates: Installment 2
October 2026
Seminar
The Doctrine of Equivalents at the UPC The Doctrine of Equivalents at the UPC
April 16, 2026
Munich
Conference
IAM Live: Navigating the UPC 2026 IAM Live: Navigating the UPC 2026
November 4, 2026
Paris
Award/Ranking
Finnegan Earns Top Rankings in 2026 IAM Patent 1000 Guide; Nearly 60 Attorneys Ranked Finnegan Earns Top Rankings in 2026 IAM Patent 1000 Guide; Nearly 60 Attorneys Ranked
May 28, 2026
Intellectual Asset Management (IAM)Award/Ranking
Best Lawyers in Germany Recognizes Four Finnegan Partners in Recent Rankings Best Lawyers in Germany Recognizes Four Finnegan Partners in Recent Rankings
June 12, 2025
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