Stefan Keehnen

Trademark Attorney at WEINMANN ZIMMERLI

Stefan Keehnen joined WEINMANN ZIMMERLI in 2010 and became a junior partner in 2015. He has been advising clients on complex trademark prosecution, enforcement and licensing matters for over 10 years. His national and international clients are large corporations, small to medium-sized companies and individuals. They are active in various industries, including building and construction, sports, foodstuff, fashion and wholesale.

Mr Keehnen is a regular contributor to publications on the subject of trademark law. He also frequently attends workshops, seminars and conferences on trademark law and related fields of law.

Mr Keehnen holds a law degree from the University of Fribourg in the French-speaking part of Switzerland. Before joining WEINMANN ZIMMERLI, Mr Keehnen worked as an in-house counsel for a sports company where he advised the board on, among other things, legal aspects of trademark-related issues.

WEINMANN ZIMMERLI is a Swiss firm focused on IP law. The firm and its team, including Mr Keehnen, are regularly featured in various international rankings such as WTR 1000 and The Legal 500.

Mr Keehnen was born in the Netherlands and has been living in Switzerland since 1994. He speaks German, English, French and Dutch.

Professional associations

  • INTA
  • VSP

Firm details

WEINMANN ZIMMERLI
Apollostrasse 2
PO Box
Zurich 8032
Switzerland

Contact details

See firm profile