IPrime Rentsch Kaelin


Hirschengraben 1

Tel:+41 442 296 060
Fax:+41 44 229 60 50

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Key contacts:

Partner: Rudolf A. Rentsch
Partner: Moritz A. Kälin

Quick facts:

Firm - Year of Establishment: 2017
Number of Partners: 6
Total Number of IP Practitioners: 4
Languages Spoken at the Firm: German, English, French, Italian, Chinese

IPrime is known as a boutique firm for intellectual property law, technology law, dispute resolution and compliance law.

Relying on a unique combination of experienced business lawyers and litigators, patent attorneys and technology experts, IPrime is able to offer high-end legal and strategic advice and advocacy services in connection with the protection and commercialization of innovations, investments into technology, as well as complex IP and commercial disputes. Key strengths of the team are its independence and close collaboration between Swiss and European patent attorneys with a profound understanding of technology and science (including AI, robotics, big data, cyberphysical systems and block chain, pharmaceuticals, chemicals and biotechnology as well as medical technology), and highly experienced dispute resolution specialists, who routinely represent parties in legal proceedings before courts, authorities and arbitral tribunals. IPrime has for years regularly handled a relevant share of all patent litigation matters in front of the Swiss Federal Patent Court.

As a part-time judge at the Federal Patent Court and experienced patent litigator, Dr. Rudolf A. Rentsch is involved in many high-stake patent cases in various technology sectors, while Dr. Anne-Catherine Hahn, who joined IPrime as partner in 2019, brings a wealth of experience in commercial litigation, arbitration and compliance. This interdisciplinarity, as well as the many years of experience which its lawyers gained in other firms and in in-house roles in the technology sector, allows IPrime to provide cutting-edge legal and strategic support to domestic and international clients at the intersection of technology and law.

Other key differentiators are the boutique structure and the discretion and substantially reduced risk of conflicts of interest, thanks to which IPrime can provide a broad range of services in contentious matters, from counsel mandates in litigation and arbitration, over arbitrator appointments to acting as mediator or settlement facilitator in situations requiring not only legal knowledge but also a thorough understanding of the underlying technical and commercial issues.

IPrime’s IP department covers both patent prosecution and patent litigation cases at Swiss, European and international level, providing strategic and legal advice with respect to the protection of intellectual property, whether under patent, trademark, copyright, trade secret, design or unfair competition laws. In particular, IPrime frequently advises IP departments of large leading global high-tech companies as well as SMEs, universities and start-ups in all areas of IP. IPrime also offers comprehensive services for the registration and administration of patent and trademark portfolios throughout Europe and overseas. In addition, IPrime’s patent attorneys and lawyers regularly assist clients in complex IP disputes, particularly in the patent area, and have accompanied a number of companies in patent cases in the U.S., China, Japan as well as many countries within Europe, in particular Germany and England. IPrime also routinely advises on the commercialization of intellectual property and related financing and structuring considerations and has set up a partnership with a large Swiss tax and accounting firm to assist companies in the tax-optimal structuring of patent portfolios, in accordance with the so-called patent boxes into Swiss law.

IPrime has offices each in the heart of the city of Zurich and Dusseldorf and since summer 2021 in Liechtenstein.

Key IP Areas
Copyright & related rights, Designs, Intellectual property (contentious), Intellectual property (prosecution), IP transactions, ITC litigation, Life sciences IP, Patent, Patent contentious, Patent prosecution, Trade mark, Trade mark contentious, Trade mark prosecution

Key Sector Expertise
Aerospace, Artificial intelligence, Arts, Automotive, Biotechnology, Chemical, Computer technology & services, Defence, E-commerce, Electrical, Electronics, Fashion & luxury goods, Financial services, Food & beverage, Gaming, ICT & software, Internet, Life sciences, Logistics, Manufacturing, Mechanical, Media, Medical device, Pharmaceutical, Renewable energy, Robotics, Technology hardware, Tobacco, Universities & research

  • AIPPI (International Association for the Protection of Intellectual Property)
  • Arbeitsgemeinschaft Geistiges Eigentum & Medien im Deutschen Anwaltverein
  • Arbitral Women
  • Asia Society Switzerland
  • EPI (Institute of Professional Representatives before the European Patent Office)
  • Ethics and Compliance Switzerland (ECS)
  • Europa Institut at the University of Zurich
  • FICPI (International Federation of Industrial Property Agents)
  • I3PM (International Institute for Management of Intellectual Property)
  • INGRES (Institute for Intellectual Property Rights)
  • International Technology Law Association
  • LES (Licensing Executives Society - Association for Licensing, Technology Transfer and Intellectual Property)
  • SCS Swiss Chemical Society
  • Silicon Valley Arbitration & Mediation Center (SVAMC)
  • Swiss Arbitration Association (ASA)
  • Swiss Association of Judges (SVR-ASM)
  • Swiss Bar Association
  • SWISS ENGINEERING STV (Swiss professional association for engineers and architects)
  • Swiss Forum for Communication Law
  • Swiss-Chinese Chamber of Commerce: SCCC
  • swissICT (Swiss Association for Information and Communication Technology)
  • UNION-IP (Union of European Practitioners in Intellectual Property)
  • VESPA (Swiss Association of European Patent Attorneys in private practice)
  • VSP (Association of Swiss Patent and Trademark Attorneys)
  • Zurich Association of legal practitoniers (ZJV)
  • Zurich Bar Association