Dehns

Dehns is one of Europe’s leading intellectual property law firms, established in London in 1920 and now operating eight offices across the UK, Germany, and Norway. With a team of more than 300 professionals, including over 150 patent attorneys, trade mark attorneys, solicitors, IP consultants, and trainees, the firm advises multinationals, SMEs, start-ups, spin-outs, academic and research institutions, and individuals worldwide. In the past decade, Dehns has filed more patent applications and handled more oppositions than any other UK firm of patent and trade mark attorneys.

The firm works across a wide range of industries, including aerospace, automotive, medical devices, manufacturing machinery, energy, telecommunications, biotechnology, pharmaceuticals, healthcare, and chemicals. Its technical expertise is supported by nearly 50 PhDs and more than 120 master’s degrees, covering disciplines such as chip architecture, nuclear fusion, neural networks, polymer chemistry, and genomics. Dehns has earned consistent recognition in leading legal and IP directories such as Legal 500, Chambers, and Managing Intellectual Property.

Dehns is at the forefront of activity before the Unified Patent Court (UPC), with 77 European Patent Attorneys authorised to represent parties in proceedings. The firm has participated in high-profile revocation and infringement cases, including the first action filed at the Paris Central Division. A partner at the firm chairs the Chartered Institute of Patent Attorneys’ UPC Committee and has appeared before both the first instance court and the Court of Appeal.

The firm offers a comprehensive range of intellectual property services. Its Patents team, comprising more than 100 professionals, covers engineering, physical sciences, electronics, software, and biotechnology. In the last year alone, Dehns filed 7,619 patent applications. Its Trade Marks practice includes 20 UK and European attorneys advising on registration, enforcement, and portfolio management. Trade Secrets services are led by a consultant with extensive expertise in open innovation and IP portfolio integration. Dehns also advises on designs, copyright, and the strategic use of trade secrets alongside patents. The firm’s Consulting team provides tailored advice on IP roadmaps and strategies, while the Dispute Resolution team handles litigation across UK courts, the UPC, the Court of Justice of the European Union, the European Patent Office, the EU Intellectual Property Office, and German courts.

Dehns is recognised for its commitment to diversity and inclusion, holding “Committed” status from Inclusive Employers. With 37% of its partners being female, the firm has one of the highest proportions of women partners among leading UK IP law firms.

Offices
London, Munich, Oslo, Brighton, Oxford, Manchester, Bristol, Birmingham

Languages
English, Norwegian, German, French

Memberships
Chartered Institute of Patent Attorneys (CIPA)
European Patent Institute (EPI)
Chartered Institute of Trade Mark Attorneys (CITMA)
European Community Trademark Association (ECTA)
International Trademark Association (INTA)
International Association for the Protection of Intellectual Property (AIPPI)
International Federation of Intellectual Property Attorneys (FICPI)
The Association of European Trade Mark Owners (MARQUES)

Staffing